{"product_id":"esx-qm500-4-amplificateur-4-canaux-class-d-ultra-compact","title":"ESX QM500.4 – Ultra-Compact 4-Channel Class D Amplifier","description":"\u003ch2\u003e ESX QM500.4 – Ultra-Compact 4-Channel Class D Amplifier\u003c\/h2\u003e\n\n\u003ch4\u003e \u003cstrong\u003eFull description\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cp\u003e The \u003cstrong\u003eESX QM500.4\u003c\/strong\u003e is a \u003cstrong\u003e4-channel Class D amplifier\u003c\/strong\u003e that combines \u003cstrong\u003eperformance, compactness and energy efficiency\u003c\/strong\u003e . With its small dimensions ( \u003cstrong\u003e190 x 35 x 102 mm\u003c\/strong\u003e ), it fits easily into \u003cstrong\u003eany vehicle\u003c\/strong\u003e , even when installation space is limited. It is inspired by the \u003cstrong\u003eQUANTUM QL\u003c\/strong\u003e range, but in an even more compact and easy-to-integrate format.\u003c\/p\u003e\n\n \u003cp\u003eIts \u003cstrong\u003epower of 4 x 125W RMS under 2Ω\u003c\/strong\u003e (or \u003cstrong\u003e2 x 250W RMS in 4Ω bridged mode\u003c\/strong\u003e ) allows you to efficiently drive speakers or a subwoofer. Its \u003cstrong\u003ehigh energy efficiency (up to 83%)\u003c\/strong\u003e guarantees clear sound reproduction while limiting power consumption and heat dissipation.\u003c\/p\u003e\n\n\u003cp\u003e The \u003cstrong\u003eESX QM500.4\u003c\/strong\u003e is equipped with \u003cstrong\u003ecomprehensive active filters\u003c\/strong\u003e , including an \u003cstrong\u003eadjustable HPF (10-5000 Hz)\u003c\/strong\u003e , an \u003cstrong\u003eadjustable LPF (50-5000 Hz)\u003c\/strong\u003e , and a \u003cstrong\u003eBandpass mode\u003c\/strong\u003e for optimal sound customization. It also incorporates \u003cstrong\u003ehigh-level inputs with EPS® (Error Protection System)\u003c\/strong\u003e , \u003cstrong\u003eautomatic power-on\u003c\/strong\u003e , and \u003cstrong\u003eStart\/Stop compatibility\u003c\/strong\u003e , making it easy to integrate into a \u003cstrong\u003estock system\u003c\/strong\u003e .\u003c\/p\u003e\n\n \u003cp\u003eFor added flexibility, a \u003cstrong\u003ecompact bass control remote\u003c\/strong\u003e is included, allowing bass level adjustment directly from the driver's seat.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch4\u003e \u003cstrong\u003eMain features\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003e4-channel Class D amplifier\u003c\/strong\u003e with \u003cstrong\u003ehigh efficiency (83%)\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eRMS Power\u003c\/strong\u003e : \u003cstrong\u003e4 x 80W @ 4Ω\u003c\/strong\u003e | \u003cstrong\u003e4 x 125W @ 2Ω\u003c\/strong\u003e | \u003cstrong\u003e2 x 250W in bridged mode @ 4Ω\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eActive filters\u003c\/strong\u003e :\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eHPF\u003c\/strong\u003e : \u003cstrong\u003e50-5000 Hz (CH1\/2)\u003c\/strong\u003e \/ \u003cstrong\u003e10-500 Hz (CH3\/4)\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eLPF\u003c\/strong\u003e : \u003cstrong\u003e50-5000 Hz (CH3\/4)\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eBandpass Mode\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCopy Mode CH3\/4 to CH1\/2\u003c\/strong\u003e for easy setting\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eRCA \u0026amp; High Level Inputs with EPS® (Error Protection System)\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eAutomatic start \u0026amp; Start\/Stop compatibility\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eMOSFET PWM Power Supply \u0026amp; 3-level protection\u003c\/strong\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cstrong\u003eUltra-compact format: 190 x 35 x 102 mm\u003c\/strong\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eBass remote control included\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch4\u003e \u003cstrong\u003eTechnical specifications\u003c\/strong\u003e \u003c\/h4\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003cstyle\u003e .table-container { width: 100%; overflow-x: auto; margin-top: 10px; } table { width: 100%; border-collapse: collapse; background-color: #E0F7FA; font-family: Arial, sans-serif; } th, td { border: 2px solid #0288D1; padding: 12px; text-align: left; font-size: 14px; } th { background-color: #0288D1; color: white; text-transform: uppercase; } tr:nth-child(even) { background-color: #B3E5FC; } \u003c\/style\u003e\n\u003cdiv class=\"table-container\"\u003e\n\n\u003ctable\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Characteristic\u003c\/th\u003e\n\n\u003cth\u003e Details\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eKind\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 4-channel Class D amplifier\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eRMS power\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 4 x 80W @ 4Ω | 4 x 125W @ 2Ω | 2 x 250W @ 4Ω (bridged)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eHPF\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 50-5000 Hz (CH1\/2) | 10-500Hz (CH3\/4)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eLPF\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 50-5000 Hz (CH3\/4)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eBandpass Mode\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e Yes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eCopy Mode\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e CH3\/4 to CH1\/2\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eEntrances\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e RCA \u0026amp; High Level with EPS®\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eAutomatic start\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e Yes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eStart\/Stop Compatibility\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e Yes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eEfficiency\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e Up to 83%\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eDimensions\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 190 x 35 x 102 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch4\u003e \u003cstrong\u003ePackage Contents\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cstrong\u003e1 x ESX QM500.4 Amplifier\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eCompact bass adjustment remote control\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eInstallation Manual\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch4\u003e \u003cstrong\u003eAdditional accessories (sold separately)\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cstrong\u003eHigh performance power cables\u003c\/strong\u003e\n\u003c\/li\u003e\n\n \u003cli\u003e\u003cstrong\u003eShielded RCA cables\u003c\/strong\u003e\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eCompatible speakers \u0026amp; subwoofers\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e 📄 \u003ca href=\"https:\/\/www.esxaudio.de\/english\/assets\/qm500.4.pdf\" target=\"_blank\" title=\"ESX QM500.4 – Ultra-Compact 4-Channel Class D Amplifier\" rel=\"noopener\"\u003e\u003cstrong\u003e[ESX QM500.4 manual (PDF)]\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e The \u003cstrong\u003eESX QM500.4\u003c\/strong\u003e is the \u003cstrong\u003eideal compact 4-channel\u003c\/strong\u003e amplifier for audio installations where \u003cstrong\u003espace is limited\u003c\/strong\u003e , while still offering \u003cstrong\u003eefficient power and advanced adjustments\u003c\/strong\u003e . Its \u003cstrong\u003eminiature design\u003c\/strong\u003e , \u003cstrong\u003eadvanced Class D technology\u003c\/strong\u003e and \u003cstrong\u003eease of integration\u003c\/strong\u003e make it a perfect solution for \u003cstrong\u003eOEM and aftermarket systems\u003c\/strong\u003e . \u003c\/p\u003e\n\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0770\/1928\/3723\/files\/MS-2-_FINAL_3eb5048c-0af5-481e-bd02-fe9bbd0f92a0_160x160.png?v=1734546281\" alt=\"ESX QM500.4 – Ultra-Compact 4-Channel Class D Amplifier\"\u003e\u003c\/div\u003e","brand":"ESX","offers":[{"title":"Default Title","offer_id":46582771515659,"sku":"QM500.4","price":229.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1928\/3723\/files\/ESX-ESX-QM500.4-_-Amplificateur-4-Canaux-Class-D-Ultra-Compact-Multison-178020430.jpg?v=1739028806","url":"https:\/\/mumltisun.com\/en\/products\/esx-qm500-4-amplificateur-4-canaux-class-d-ultra-compact","provider":"mumltisun.com","version":"1.0","type":"link"}