{"id":44016,"date":"2024-03-13T14:19:46","date_gmt":"2024-03-13T19:19:46","guid":{"rendered":"https:\/\/www.rvsperformance.com\/live\/shop\/d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated\/"},"modified":"2025-04-07T16:48:02","modified_gmt":"2025-04-07T21:48:02","slug":"d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated","status":"publish","type":"product","link":"https:\/\/www.rvsperformance.com\/live\/shop\/d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated\/","title":{"rendered":"D-Class 4 Channel Amplifier 125 WRMS x 4 at 2&Omega; (IP55 rated)"},"content":{"rendered":"<h2>Ch: 4 &#8211; 3 &#8211; 2 | 600 W<\/h2>\r\n\r\n<p>SP 4.500 features <strong>Hertz ADC (Advanced D-Class)<\/strong> output stage, reaching up to 87% efficiency and delivering an impressive power rating of <strong>90 x 4 (4&Omega;) W RMS<\/strong>&nbsp;<strong>or<\/strong> <strong>300 W x 2 (4O) W RMS<\/strong> when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1) mm (in.) x 49 (1.9). Being ultra-compact with impressive power, SP 4.500 is the ideal choice for Motorcycle applications and for under-seat in sports cars and behind-seat installations in trucks.<\/p>\r\n\r\n<div class=\"product-layout-informations hd_product_features_tabs col-12\">\r\n                                                <ul class=\"nav nav-tabs\" id=\"product-tab\" role=\"tablist\">\r\n                                                            <li class=\"nav-item\" role=\"tab\">\r\n                                    <button itemprop=\"title\" class=\"nav-link active\" id=\"product-control-specs\" data-bs-toggle=\"tab\" data-bs-target=\"#product-specs\" type=\"button\" role=\"tab\" aria-controls=\"product-specs\" aria-selected=\"true\">\r\n                                        Specs                                    <\/button>\r\n                                <\/li>\r\n                                                                    <li class=\"nav-item\" role=\"tab\">\r\n                                        <button itemprop=\"title\" class=\"nav-link \" id=\"product-control-features\" data-bs-toggle=\"tab\" data-bs-target=\"#product-features\" type=\"button\" role=\"tab\" aria-controls=\"product-features\" aria-selected=\"true\">\r\n                                            Features                                        <\/button>\r\n                                    <\/li>\r\n                                                                        <li class=\"nav-item\" role=\"tab\">\r\n                                        <button itemprop=\"title\" class=\"nav-link \" id=\"product-control-input-output\" data-bs-toggle=\"tab\" data-bs-target=\"#product-input-output\" type=\"button\" role=\"tab\" aria-controls=\"product-input-output\" aria-selected=\"true\">\r\n                                            Input\/Output                                        <\/button>\r\n                                    <\/li>\r\n                                                                        <li class=\"nav-item\" role=\"tab\">\r\n                                        <button itemprop=\"title\" class=\"nav-link \" id=\"product-control-technologies\" data-bs-toggle=\"tab\" data-bs-target=\"#product-technologies\" type=\"button\" role=\"tab\" aria-controls=\"product-technologies\" aria-selected=\"true\">\r\n                                            Technologies                                        <\/button>\r\n                                    <\/li>\r\n                                                                        <li class=\"nav-item\" role=\"tab\">\r\n                                        <button itemprop=\"title\" class=\"nav-link\" id=\"product-control-more-info\" data-bs-toggle=\"tab\" data-bs-target=\"#product-more-info\" type=\"button\" role=\"tab\" aria-controls=\"product-more-info\" aria-selected=\"false\">\r\n                                            More Info                                        <\/button>\r\n                                    <\/li>\r\n                                                                        <li class=\"nav-item\" role=\"tab\">\r\n                                        <button itemprop=\"title\" class=\"nav-link \" id=\"product-control-downloads\" data-bs-toggle=\"tab\" data-bs-target=\"#product-downloads\" type=\"button\" role=\"tab\" aria-controls=\"product-downloads\" aria-selected=\"true\">\r\n                                            Downloads                                        <\/button>\r\n                                    <\/li>\r\n                                                            <\/ul>\r\n                        <div class=\"tab-content\" id=\"product-tab-content\">\r\n                                                            <div class=\"tab-pane fade active show\" id=\"product-specs\" role=\"tabpanel\" aria-labelledby=\"product-control-specs\" itemprop=\"content\">\r\n                                    <div class=\"row\">\r\n                                                                                            <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                        <div class=\"sc--separator-elements\">\r\n                                                            <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                                General Specs                                                            <\/div>\r\n                                                                    <div class=\"table-responsive-sm\" itemprop=\"content\">\r\n            <table class=\"table caption-top\">\r\n                                    <tbody>\r\n                                                    <tr>\r\n                                    <td><strong>Channels<\/strong> <\/td>\r\n                                    <td>4 &#8211; 3 &#8211; 2<\/td>\r\n                                <\/tr>\r\n                                                                            <tr>\r\n                                                            <td><strong>Nominal power supply voltage<\/strong><\/td>\r\n                                                                <td>11 \u00f7 15 VDC<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Pulse Operating voltage<\/strong><\/td>\r\n                                                                <td>6 \u00f7 16 VDC<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Idling current<\/strong><\/td>\r\n                                                                <td>0.9 A<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Idling current when off<\/strong><\/td>\r\n                                                                <td>0.03 mA<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Consumption @ 14.4 VDC, MIN load\r\nimpedance (Max Musical Power)<\/strong><\/td>\r\n                                                                <td>27 A<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Remote IN<\/strong><\/td>\r\n                                                                <td>6 \u00f7 15 VDC (9 mA)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>DC-REM &#8211; Remote Turn on by SPK DC\r\nfrom OUTPUT BTL speakers<\/strong><\/td>\r\n                                                                <td>3.5 \u00f7 7 VDC<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Distortion &#8211; THD @ 1 kHz, 4O, 70% Rated Power<\/strong><\/td>\r\n                                                                <td>&lt;0.02%<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Damping factor @ 1 kHz, 4O, 2 VRMS<\/strong><\/td>\r\n                                                                <td>&gt;150<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Bandwidth @ -3 dB<\/strong><\/td>\r\n                                                                <td>10 Hz \u00f7 35 kHz<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>S\/N ratio (A weighted @ 1 V Input)<\/strong><\/td>\r\n                                                                <td>100 dBA<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Pre-In sensitivity<\/strong><\/td>\r\n                                                                <td>0.6 \u00f7 6 VRMS<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Speaker-In sensitivity<\/strong><\/td>\r\n                                                                <td>2.2 \u00f7 22 VRMS<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Minimum load impedance:<\/strong><\/td>\r\n                                                                <td><\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>@ 4Ch<\/td>\r\n                                                                <td>2O<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>@ 3Ch<\/td>\r\n                                                                <td>2O + 2O + 4O<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>@ 2Ch<\/td>\r\n                                                                <td>4O<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>IP Rating<\/strong><\/td>\r\n                                                                <td>IP55<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Operating Temperature Range<\/strong><\/td>\r\n                                                                <td>0\u00b0C (32\u00b0F) to 55\u00b0C (131\u00b0F)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Max size (mm\/inch)<\/strong><\/td>\r\n                                                                <td>192.7 x 130 x 49 \/ 7.58 x 4.18 x 1.9<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Weight (kg\/lbs)<\/strong><\/td>\r\n                                                                <td>2.15 \/ 4.74<\/td>\r\n                                                        <\/tr>\r\n                                                                            <tr>\r\n                                    <td><strong>Adjustable Crossovers<\/strong> <\/td>\r\n                                    <td>yes<\/td>\r\n                                <\/tr>\r\n                                                    <\/tbody>\r\n                                <\/table>\r\n        <\/div>\r\n                                                                <\/div>\r\n                                                    <\/div>\r\n                                                                                                <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                    <div class=\"sc--separator-elements\">\r\n                                                        <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                            Output Power                                                        <\/div>\r\n                                                                <div class=\"table-responsive-sm\" itemprop=\"content\">\r\n            <table class=\"table caption-top\">\r\n                                    <tbody>\r\n                                                                <tr>\r\n                                                            <td><strong>Output Nominal Power (RMS) @ 14.4 VDC, THD 1%:<\/strong><\/td>\r\n                                                                <td><\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>4 Ch:<\/td>\r\n                                                                <td>90 W x 4 (4O)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>4 Ch:<\/td>\r\n                                                                <td>150 W x 4 (2O)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>3 Ch:<\/td>\r\n                                                                <td>80 W x 2 (4O) + 330 W x 1 (4O)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>3 Ch:<\/td>\r\n                                                                <td>145 W x 2 (2O) + 300 W x 1 (4O)<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>2 Ch:<\/td>\r\n                                                                <td>300 W x 2 (4O)<\/td>\r\n                                                        <\/tr>\r\n                                                                            <tr>\r\n                                    <td><strong>Total Power<\/strong> <\/td>\r\n                                    <td>600 W<\/td>\r\n                                <\/tr>\r\n                                                    <\/tbody>\r\n                                <\/table>\r\n        <\/div>\r\n                                                            <\/div>\r\n                                                <\/div>\r\n                                                                                                <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                    <div class=\"sc--separator-elements\">\r\n                                                        <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                            INPUTS \/ FILTERS                                                        <\/div>\r\n                                                                <div class=\"table-responsive-sm\" itemprop=\"content\">\r\n            <table class=\"table caption-top\">\r\n                                    <tbody>\r\n                                                                <tr>\r\n                                                            <td><strong>INPUTS:<\/strong><\/td>\r\n                                                                <td>Pre IN \/ Speaker IN<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Ch 1-2<\/strong><\/td>\r\n                                                                <td><\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Full<\/td>\r\n                                                                <td>Yes<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Hi-pass<\/td>\r\n                                                                <td>50 \u00f7 5k Hz @ 12 dB\/Oct.<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Lo-pass:<\/td>\r\n                                                                <td>50 \u00f7 5k Hz @ 12 dB\/Oct.<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>Ch 3-4<\/strong><\/td>\r\n                                                                <td><\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Full<\/td>\r\n                                                                <td>Yes<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Hi-pass<\/td>\r\n                                                                <td>50 \u00f7 5k Hz @ 12 dB\/Oct.<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Lo-pass<\/td>\r\n                                                                <td>50 \u00f7 5k Hz @ 12 dB\/Oct.<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td>Bass Boost 45Hz (adjustable)<\/td>\r\n                                                                <td>OUT 3 &#8211; 4 (0 \u00f7 8) dB [LP = ON only]<\/td>\r\n                                                        <\/tr>\r\n                                                                <\/tbody>\r\n                                <\/table>\r\n        <\/div>\r\n                                                            <\/div>\r\n                                                <\/div>\r\n                                                                                                <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                    <div class=\"sc--separator-elements\">\r\n                                                        <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                            Physical Specs                                                        <\/div>\r\n                                                                                                                    <a class=\"float-start mb-3\" data-fancybox=\"product-physical-specs\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SPL_Show_SP_4.500_dim.png\">\r\n                                                                <img loading=\"lazy\" width=\"531\" height=\"879\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SPL_Show_SP_4.500_dim.png\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SPL_Show_SP_4.500_dim.png 531w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SPL_Show_SP_4.500_dim-181x300.png 181w\" sizes=\"auto, (max-width: 531px) 100vw, 531px\">                                                            <\/a>\r\n                                                                    <div class=\"table-responsive-sm\" itemprop=\"content\">\r\n            <table class=\"table caption-top\">\r\n                                    <tbody>\r\n                                                                <tr>\r\n                                                            <td><\/td>\r\n                                                                <td>mm<\/td>\r\n                                                                <td>in<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>A<\/strong><\/td>\r\n                                                                <td>185.7<\/td>\r\n                                                                <td>7.31<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>B<\/strong><\/td>\r\n                                                                <td>192.7<\/td>\r\n                                                                <td>7.58<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>C<\/strong><\/td>\r\n                                                                <td>107<\/td>\r\n                                                                <td>4.21<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>D<\/strong><\/td>\r\n                                                                <td>130<\/td>\r\n                                                                <td>5.12<\/td>\r\n                                                        <\/tr>\r\n                                                <tr>\r\n                                                            <td><strong>E<\/strong><\/td>\r\n                                                                <td>49<\/td>\r\n                                                                <td>1.93<\/td>\r\n                                                        <\/tr>\r\n                                                                <\/tbody>\r\n                                <\/table>\r\n        <\/div>\r\n                                                            <\/div>\r\n                                                <\/div>\r\n<\/div>\r\n                                <\/div>\r\n                                                                    <div class=\"tab-pane fade \" id=\"product-features\" role=\"tabpanel\" aria-labelledby=\"product-control-features\" itemprop=\"content\">\r\n                                        <div class=\"row\">\r\n                                            <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                Features                                            <\/div>\r\n                                                                                                <a class=\"col-md-6 col-sm-12\" data-fancybox=\"product-features\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg\">\r\n                                                        <img loading=\"lazy\" width=\"2249\" height=\"1057\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg 2249w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-300x141.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-1024x481.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-768x361.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-1536x722.jpg 1536w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-2048x963.jpg 2048w\" sizes=\"auto, (max-width: 2249px) 100vw, 2249px\">                                                    <\/a>\r\n                                                                                                <div class=\"col-md-6 col-sm-12\">\r\n                                                                                                        <div itemprop=\"content\">\r\n                                                            <ol>\r\n<li>Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage.<\/li>\r\n<li>USS (Universal Speakers Simulators) allows SP 4.500 to work with head units featuring the \u201cspeaker load detection\u201d circuit.<\/li>\r\n<li>90 W RMS x 4 (4O) with ultra-compact size: 192.7 x 130 x 49 \/ 7.59 x 5.12 x 1.93 (mm\/inch)<\/li>\r\n<li>IP55 aluminum chassis for maximum protection against humidity and external agents.<\/li>\r\n<li>No cooling fan to prevent internal accumulation of dirt.<\/li>\r\n<li>Sealed power cord, line inputs and speaker outputs to prevent oxidation.<\/li>\r\n<li>Crossover filters and controls on a single side to facilitate calibration when the product is installed.<\/li>\r\n<li>Balanced fully-differential high-noise rejection inputs.<\/li>\r\n<li>ART (Automatic Remote Turn-On\/Off) automatically turns on\/off the amplifier when the OEM head-unit turns on\/off (can be enabled\/disabled).<\/li>\r\n<\/ol>\r\n                                                        <\/div>\r\n                                                                                                    <\/div>\r\n                                        <\/div>\r\n                                    <\/div>\r\n                                                                        <div class=\"tab-pane fade \" id=\"product-input-output\" role=\"tabpanel\" aria-labelledby=\"product-control-input-output\" itemprop=\"content\">\r\n                                        <div class=\"row\">\r\n                                            <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                Input\/Output                                            <\/div>\r\n                                                                                                <a class=\"col-md-6 col-sm-12\" data-fancybox=\"product-input-output\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug.jpg\">\r\n                                                        <img loading=\"lazy\" width=\"2271\" height=\"1071\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug.jpg\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug.jpg 2271w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug-300x141.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug-1024x483.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug-768x362.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug-1536x724.jpg 1536w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4900_plug-2048x966.jpg 2048w\" sizes=\"auto, (max-width: 2271px) 100vw, 2271px\">                                                    <\/a>\r\n                                                                                                        <a class=\"col-md-6 col-sm-12\" data-fancybox=\"product-input-output\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg\">\r\n                                                        <img loading=\"lazy\" width=\"2249\" height=\"1057\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel.jpg 2249w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-300x141.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-1024x481.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-768x361.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-1536x722.jpg 1536w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_SP4500_control_panel-2048x963.jpg 2048w\" sizes=\"auto, (max-width: 2249px) 100vw, 2249px\">                                                    <\/a>\r\n                                                                                            <\/div>\r\n                                    <\/div>\r\n                                                                            <div class=\"tab-pane fade \" id=\"product-technologies\" role=\"tabpanel\" aria-labelledby=\"product-control-technologies\" itemprop=\"content\">\r\n                                            <div class=\"row\">\r\n                                                <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                    Technologies                                                <\/div>\r\n                                                                                                    <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                        <div class=\"sc--separator-elements\">\r\n                                                            <div class=\"row\">\r\n                                                                                                                                    <a class=\"col-md-6 col-sm-12 mb-3\" data-fancybox=\"product-technologies-0\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_ADC.png\">\r\n                                                                        <img loading=\"lazy\" width=\"501\" height=\"169\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_ADC.png\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_ADC.png 501w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_ADC-300x101.png 300w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\">                                                                    <\/a>\r\n                                                                                                                                    <div class=\"col-md-6 col-sm-12\">\r\n                                                                                                                                            <div itemprop=\"content\">\r\n                                                                            <p class=\"p1\">Up to 87% efficiency thanks to ADC (Advanced D-Class) output stage<\/p>\r\n                                                                        <\/div>\r\n                                                                                                                                        <\/div>\r\n                                                            <\/div>\r\n                                                        <\/div>\r\n                                                    <\/div>\r\n                                                                                                        <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                        <div class=\"sc--separator-elements\">\r\n                                                            <div class=\"row\">\r\n                                                                                                                                    <a class=\"col-md-6 col-sm-12 mb-3\" data-fancybox=\"product-technologies-1\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_USS.png\">\r\n                                                                        <img loading=\"lazy\" width=\"695\" height=\"169\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_USS.png\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_USS.png 695w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_USS-300x73.png 300w\" sizes=\"auto, (max-width: 695px) 100vw, 695px\">                                                                    <\/a>\r\n                                                                                                                                    <div class=\"col-md-6 col-sm-12\">\r\n                                                                                                                                            <div itemprop=\"content\">\r\n                                                                            <p>USS (Universal Speakers Simulators) allows SP 4.500 to work with head units featuring the \u201cspeaker load detection\u201d circuit<\/p>\r\n                                                                        <\/div>\r\n                                                                                                                                        <\/div>\r\n                                                            <\/div>\r\n                                                        <\/div>\r\n                                                    <\/div>\r\n                                                                                                        <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                        <div class=\"sc--separator-elements\">\r\n                                                            <div class=\"row\">\r\n                                                                                                                                    <a class=\"col-md-6 col-sm-12 mb-3\" data-fancybox=\"product-technologies-2\" itemprop=\"content\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_Ultra_Compact_amp.png\">\r\n                                                                        <img loading=\"lazy\" width=\"650\" height=\"169\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_Ultra_Compact_amp.png\" class=\"attachment-full size-full\" alt=\"SP 4.500\" decoding=\"async\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_Ultra_Compact_amp.png 650w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_Ultra_Compact_amp-300x78.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\">                                                                    <\/a>\r\n                                                                                                                                    <div class=\"col-md-6 col-sm-12\">\r\n                                                                                                                                            <div itemprop=\"content\">\r\n                                                                            <p class=\"p1\">90 x 4 RMS (4O) with ultra-compact size (192.7 x 130 x 49 mm)<\/p>\r\n                                                                        <\/div>\r\n                                                                                                                                        <\/div>\r\n                                                            <\/div>\r\n                                                        <\/div>\r\n                                                    <\/div>\r\n                                                                                                        <div class=\"col-md-6 col-xs-12 mb-5\">\r\n                                                        <div class=\"sc--separator-elements\">\r\n                                                            <div class=\"row\">\r\n                                                                                                                                <div class=\"col-md-12 col-sm-12\">\r\n                                                                                                                                            <div itemprop=\"content\">\r\n                                                                            \r\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-large wp-image-7399\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/Hertz_Powerspots_logo-1024x218-1.png\" alt=\"\" width=\"1024\" height=\"218\"><\/p>\r\n<p>IP55 aluminum chassis for maximum protection against humidity and external agents<\/p>\r\n                                                                        <\/div>\r\n                                                                                                                                        <\/div>\r\n                                                            <\/div>\r\n                                                        <\/div>\r\n                                                    <\/div>\r\n                                                                                                <\/div>\r\n                                        <\/div>\r\n                                                                            <div class=\"tab-pane fade\" id=\"product-more-info\" role=\"tabpanel\" aria-labelledby=\"product-control-more-info\" itemprop=\"content\">\r\n                                            <div class=\"row\">\r\n                                                \t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7441\" class=\"elementor elementor-7441\" data-elementor-post-type=\"page\">\r\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1fa6a0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1fa6a0\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d20635a\" data-id=\"d20635a\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap\">\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a57eb5a elementor-section-boxed elementor-section-height-default elementor-section-height-default animated pulse\" data-id=\"a57eb5a\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;pulse&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dc0c1d7\" data-id=\"dc0c1d7\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0c4b75c container elementor-widget elementor-widget-heading\" data-id=\"0c4b75c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.20.0 - 11-03-2024 *\/\r\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h1 class=\"elementor-heading-title elementor-size-default\">SP 4.900 AMPLIFIER<\/h1>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-b22535f container elementor-widget elementor-widget-text-editor\" data-id=\"b22535f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.20.0 - 11-03-2024 *\/\r\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>1000 W, D-CLASS FOUR CHANNEL AMPLIFIER<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-66e197e elementor-align-left container no-print elementor-widget elementor-widget-button\" data-id=\"66e197e\" data-element_type=\"widget\" data-widget_type=\"button.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\r\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/[sc_link_home]\/collections\/car-audio-amplifiers-spl-show\/\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-icon elementor-align-icon-left\">\r\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-left\"><\/i>\t\t\t<\/span>\r\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Back to products<\/span>\r\n\t\t<\/span>\r\n\t\t\t\t\t<\/a>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b044111 container elementor-section-boxed elementor-section-height-default elementor-section-height-default animated slideInLeft\" data-id=\"b044111\" data-element_type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;slideInLeft&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ac0d227\" data-id=\"ac0d227\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-250b682 elementor-widget elementor-widget-image\" data-id=\"250b682\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.20.0 - 11-03-2024 *\/\r\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t<figure class=\"wp-caption\">\r\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"SP-4,900_EMO-CON-COVER-PANNELLO\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Ijc0NDgiLCJ1cmwiOiJodHRwczpcL1wvc3RhdGljLmhlcnR6LWF1ZGlvLmNvbVwvbWVkaWFcLzIwMjJcLzAyXC9TUC00OTAwX0VNTy1DT04tQ09WRVItUEFOTkVMTE8tMi5qcGcifQ%3D%3D\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"646\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2-1024x646.jpg\" class=\"attachment-large size-large wp-image-7448\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2-1024x646.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2-300x189.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2-768x485.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_EMO-CON-COVER-PANNELLO-2.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\">\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\r\n\t\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-327da3a elementor-widget elementor-widget-text-editor\" data-id=\"327da3a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p>SP 4.900 D-CLASS FOUR CHANNEL AMPLIFIER<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e64c35f\" data-id=\"e64c35f\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7c5f478 elementor-widget elementor-widget-heading\" data-id=\"7c5f478\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Hertz ADC <br>\r\n(Advanced D-Class) <\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-d97438a elementor-widget elementor-widget-text-editor\" data-id=\"d97438a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><span style=\"color: #374151;font-family: S\u00f6hne, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Ubuntu, Cantarell, 'Noto Sans', sans-serif, 'Helvetica Neue', Arial, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'\">The Herz SP compact amplifier range consists of three high-performance models. There are two four-channel models, the flagship SP4.900 with 160 x 4 W RMS at 4&Omega; and the SP4.500 with 90 x 4 W RMS at 4&Omega;, and a mono model SP1.900 boasting 1000 W RMS at 1&Omega;.<\/span><\/p><p>Hertz SP amplifier are the first Hertz amplifier featuring the renewed <strong>Hertz ADC (Advanced D-Class)<\/strong> output stage, reaching up to 87% efficiency and delivering an impressive power rating, with an ultra-compact size.&nbsp;<\/p><p>Being ultra-compact with an impressive power, SP amplifiers are the ideal choice for Motorcycle application and for under-seat in sport cars and behind-seat installations in trucks.<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-e175480 elementor-widget elementor-widget-image\" data-id=\"e175480\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-elements-protection-e1649084946348-pmvibelg7iixjgc91w4s3dl5moiwrfhcm96jut37vu.png\" title=\"SP-4900-elements-protection\" alt=\"SP-4900-elements-protection\" loading=\"lazy\">\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d9306f9 container elementor-section-boxed elementor-section-height-default elementor-section-height-default animated slideInRight\" data-id=\"d9306f9\" data-element_type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;slideInRight&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-06a0c90\" data-id=\"06a0c90\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f28d764 elementor-widget elementor-widget-text-editor\" data-id=\"f28d764\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p>Hertz ADC technology ensures SP amplifiers overtake the usual <strong>ultra-compact amplifier performances,<\/strong> delivering an outstanding S\/N Ratio and THD specifications, and almost completely eliminating EMI and RFI noise, for<strong> peerless sound quality.<\/strong><\/p><p>This versatility of the four-channel models is perfect to drive high-power (4&Omega;) front speakers with <strong>a bridged (4&Omega;) subwoofer<\/strong>.<\/p><p>SP amplifiers are fully protected against overheating and DC outputs, immediately switching in protection mode (red LED on) to save your speaker system.<\/p><p><strong>The IP55 certified Aluminum chassis<\/strong> offers maximum protection against humidity and external agents and <strong>the absence of an internal cooling fan<\/strong> prevents the accumulation of dirt. SP amplifier\u2019s main board <strong>has conformal coating layers<\/strong> to prevent harm caused by internal condensation, a condition that can happen when warm, moist air meets the amp chassis of a lower temperature.<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-014a332\" data-id=\"014a332\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e62cb6a elementor-widget elementor-widget-image\" data-id=\"e62cb6a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\r\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"SP-4,900_ESPLOSO-PANNELLO\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Ijc0NTIiLCJ1cmwiOiJodHRwczpcL1wvc3RhdGljLmhlcnR6LWF1ZGlvLmNvbVwvbWVkaWFcLzIwMjJcLzAyXC9TUC00OTAwX0VTUExPU08tUEFOTkVMTE8uanBnIn0%3D\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"646\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO-1024x646.jpg\" class=\"attachment-large size-large wp-image-7452\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO-1024x646.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO-300x189.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO-768x485.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_ESPLOSO-PANNELLO.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\">\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\r\n\t\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-9530925 elementor-widget elementor-widget-text-editor\" data-id=\"9530925\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p class=\"MsoNormal\"><span lang=\"EN-US\" style=\"font-size: 11.0pt\">All controls are protected by a removable aluminum panel, to make the SP 4.900 IP55 compliant, preventing humidity reaching the switches.<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-718b07d container elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"718b07d\" data-element_type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;slideInLeft&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-80793b3\" data-id=\"80793b3\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cbb5150 elementor-widget elementor-widget-image\" data-id=\"cbb5150\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\r\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"698\" height=\"376\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-Sealed-connectors-1.jpg\" class=\"attachment-large size-large wp-image-7463\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-Sealed-connectors-1.jpg 698w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-Sealed-connectors-1-300x162.jpg 300w\" sizes=\"auto, (max-width: 698px) 100vw, 698px\">\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\r\n\t\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-28197cc elementor-widget elementor-widget-image\" data-id=\"28197cc\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\r\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"SP-4,900_PANNELLO-CONNESSIONI\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Ijc0NjYiLCJ1cmwiOiJodHRwczpcL1wvc3RhdGljLmhlcnR6LWF1ZGlvLmNvbVwvbWVkaWFcLzIwMjJcLzAyXC9TUC00OTAwX1BBTk5FTExPLUNPTk5FU1NJT05JLmpwZyJ9\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"386\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI-1024x386.jpg\" class=\"attachment-large size-large wp-image-7466\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI-1024x386.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI-300x113.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI-768x289.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONNESSIONI.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\">\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\r\n\t\t\t\t\t\t\t\t\t\t<\/figure>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3cd8ffb\" data-id=\"3cd8ffb\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-37eea26 elementor-widget elementor-widget-text-editor\" data-id=\"37eea26\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><strong>SP amplifiers feature a built-in sealed power cord, line inputs, and speaker outputs<\/strong> for a bulletproof motorcycle application providing safe power delivery in even the worst weather conditions. <strong>The solid power supply harness <\/strong>ensures ultra-stable power and ground connection, preventing any loss of contact caused by vibration. Due to its specific design, <strong>SP amplifiers are the ultimate option for Motorcycle, Marine, and Powersports applications.<\/strong><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-e5875f5 elementor-widget elementor-widget-image\" data-id=\"e5875f5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"58\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-technology.png\" class=\"attachment-large size-large wp-image-7464\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-technology.png 640w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900-technology-300x27.png 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\">\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-b6b4ef4 elementor-widget elementor-widget-text-editor\" data-id=\"b6b4ef4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p>SP 4.900 features <strong>built-in USS (Universal Speakers Simulator)<\/strong>, a dynamic load circuit on Hi-Level inputs which initially shows the OEM output channel a load low enough to neutralize OEM speaker outputs muting protection circuit. Once the circuit activates, a higher load is introduced \u2013 still low enough to damp Class D outputs, but not low enough to cause current issues or heat dissipation problems.<\/p><p>SP 4.900 offers both remote-in signal detection and DC offset sensing on the speaker inputs for automatic turn on, providing total integration with any vehicle.<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c780354 container elementor-section-boxed elementor-section-height-default elementor-section-height-default elementor-invisible\" data-id=\"c780354\" data-element_type=\"section\" data-settings=\"{&quot;animation&quot;:&quot;slideInRight&quot;}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3d34fae\" data-id=\"3d34fae\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ccfe54 elementor-widget elementor-widget-text-editor\" data-id=\"5ccfe54\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><strong>The versatile crossover filters and control knob are all located on a single side<\/strong>, to allow an easy calibration when the product is installed.<\/p><p>The filters section includes extremely flexible high-pass and low-pass crossovers, adjustable from 50 Hz to 5 kHz with 12 dB\/Oct slope. Together with a bass-boost control (45 Hz, 0\u00f78 dB), they allow both front channels to be configured for full-range operation, or for use with a subwoofer and related speakers.<\/p><p>The high-pass crossover can also be used to optimize the performance of SPL Show NEO high-efficiency coaxial speakers, the perfect partners for SP amplifiers.<\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d29b3b6\" data-id=\"d29b3b6\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f654b0f elementor-widget elementor-widget-image\" data-id=\"f654b0f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"SP-4,900_PANNELLO-CONTROLLI\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Ijc0NjUiLCJ1cmwiOiJodHRwczpcL1wvc3RhdGljLmhlcnR6LWF1ZGlvLmNvbVwvbWVkaWFcLzIwMjJcLzAyXC9TUC00OTAwX1BBTk5FTExPLUNPTlRST0xMSS5qcGcifQ%3D%3D\">\r\n\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"386\" src=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI-1024x386.jpg\" class=\"attachment-large size-large wp-image-7465\" alt=\"\" srcset=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI-1024x386.jpg 1024w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI-300x113.jpg 300w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI-768x290.jpg 768w, https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/SP-4900_PANNELLO-CONTROLLI.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\">\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-192a349 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"192a349\" data-element_type=\"section\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0d706d4\" data-id=\"0d706d4\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c44594d elementor-widget elementor-widget-spacer\" data-id=\"c44594d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.20.0 - 11-03-2024 *\/\r\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container{height:100%;width:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty,.e-con>.elementor-widget-spacer.elementor-widget-empty{position:relative;min-height:22px;min-width:22px}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon,.e-con>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;padding:0;width:22px;height:22px}<\/style>\t\t<div class=\"elementor-spacer\">\r\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<\/div>\r\n\t\t                                            <\/div>\r\n                                        <\/div>\r\n                                                                            <div class=\"tab-pane fade \" id=\"product-downloads\" role=\"tabpanel\" aria-labelledby=\"product-control-downloads\" itemprop=\"content\">\r\n                                            <div class=\"row\">\r\n                                                <div class=\"col-md-6 col-sm-12\">\r\n                                                    <div class=\"product-tab-title mb-3\" itemprop=\"title\">\r\n                                                        Downloads                                                    <\/div>\r\n                                                                                                                <div class=\"float-start w-100 mb-5\">\r\n                                                                <a target=\"_blank\" class=\"document-file product-external-manual-file float-left position-relative d-flex align-items-center\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/FFL197A_SP_Amplifiers_Users_Manual_REV_A_x web.pdf\" download=\"\" itemprop=\"content\" rel=\"noopener\">\r\n                                                                    Owner&#8217;s Manual                                                                <\/a>\r\n                                                            <\/div>\r\n                                                                                                                        <div class=\"float-start w-100 mb-5\">\r\n                                                                <a target=\"_blank\" class=\"document-file product-manual-file float-left position-relative d-flex align-items-center\" href=\"https:\/\/www.rvsperformance.com\/live\/wp-content\/uploads\/2024\/03\/HERTZ_SPL_SP4500_Tech_Sheet_2023.pdf\" download=\"\" itemprop=\"content\" rel=\"noopener\">\r\n                                                                    Technical Datasheet                                                                <\/a>\r\n                                                            <\/div>\r\n                                                                                                            <\/div>\r\n                                                                                            <\/div>\r\n                                        <\/div>\r\n                                                            <\/div>\r\n                    <\/div>","protected":false},"excerpt":{"rendered":"Ch: 4 &#8211; 3 &#8211; 2 | 600 W SP 4.500 features Hertz ADC (Advanced D-Class) output stage, reaching up to 87% efficiency and delivering an impressive power rating of 90 x 4 (4&Omega;) W RMS&nbsp;or 300 W x 2 (4O) W RMS when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1)&hellip;<p><a class=\"more-link\" href=\"https:\/\/www.rvsperformance.com\/live\/shop\/d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated\/\" title=\"Continue reading &lsquo;D-Class 4 Channel Amplifier 125 WRMS x 4 at 2&Omega; (IP55 rated)&rsquo;\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>","protected":false},"featured_media":43856,"comment_status":"open","ping_status":"closed","template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[22124],"product_tag":[],"class_list":{"0":"post-44016","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amplifiers","8":"first","9":"instock","10":"sale","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>D-Class 4 Channel Amplifier 125 WRMS x 4 at 2&Omega; (IP55 rated) - RVS Performance<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rvsperformance.com\/live\/shop\/d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D-Class 4 Channel Amplifier 125 WRMS x 4 at 2&Omega; (IP55 rated) - RVS Performance\" \/>\n<meta property=\"og:description\" content=\"Ch: 4 &#8211; 3 &#8211; 2 | 600 W SP 4.500 features Hertz ADC (Advanced D-Class) output stage, reaching up to 87% efficiency and delivering an impressive power rating of 90 x 4 (4&Omega;) W RMS&nbsp;or 300 W x 2 (4O) W RMS when bridged, with an ultra-compact size of 192.7 (7.58) x 130 (5.1)&hellip;Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rvsperformance.com\/live\/shop\/d-class-4-channel-amplifier-125-wrms-x-4-at-2-ip55-rated\/\" \/>\n<meta property=\"og:site_name\" content=\"RVS Performance\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-07T21:48:02+00:00\" \/>\n<meta property=\"og:image\" 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