{"product_id":"esx-qe900-4-amplificateur-4-canaux-class-d-digital-900-watts","title":"ESX QE900.4 – 900 Watts 4-Channel Class D Digital Amplifier","description":"\u003ch2\u003e ESX QE900.4 – 900 Watts 4-Channel Class D Digital Amplifier\u003c\/h2\u003e\n\n \u003ch2\u003eFull description\u003c\/h2\u003e\n\n\u003cp\u003e The \u003cstrong\u003eESX QE900.4\u003c\/strong\u003e is part of the new \u003cstrong\u003eQUANTUM QE\u003c\/strong\u003e series, developed to offer an \u003cstrong\u003eexceptional audio experience\u003c\/strong\u003e without interference with the vehicle's radio system. Unlike conventional digital amplifiers, this model guarantees music playback \u003cstrong\u003ewithout disturbing emissions\u003c\/strong\u003e , thanks to its \u003cstrong\u003eEPS® (Error Protection System) circuit\u003c\/strong\u003e .\u003c\/p\u003e\n\n\u003cp\u003e Featuring \u003cstrong\u003ehigh-quality components\u003c\/strong\u003e , a \u003cstrong\u003esolid aluminum heat sink\u003c\/strong\u003e , and \u003cstrong\u003evariable crossover filters\u003c\/strong\u003e , the \u003cstrong\u003eESX QE900.4\u003c\/strong\u003e delivers powerful, accurate sound. Its \u003cstrong\u003eCopy mode\u003c\/strong\u003e allows you to duplicate channel 3\/4 settings to channel 1\/2, simplifying setup and sound optimization.\u003c\/p\u003e\n\n \u003cp\u003eWith a \u003cstrong\u003eMOSFET PWM power supply\u003c\/strong\u003e , a \u003cstrong\u003e3-way protection circuit\u003c\/strong\u003e , and a \u003cstrong\u003eStart\/Stop Ready mode\u003c\/strong\u003e , this amplifier is designed for \u003cstrong\u003ehigh-end configurations\u003c\/strong\u003e . It comes with a \u003cstrong\u003ecompact level remote control\u003c\/strong\u003e , allowing easy adjustment of the bass volume.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e 🔹 Main Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eAdvanced Class D technology\u003c\/strong\u003e with \u003cstrong\u003ehigh energy efficiency (84%)\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eEPS® (Error Protection System)\u003c\/strong\u003e : Protection against radio interference\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eSelected audiophile components\u003c\/strong\u003e for \u003cstrong\u003ehigh-fidelity sound\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eSolid aluminum heat sink\u003c\/strong\u003e with \u003cstrong\u003ecast iron side elements\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eVariable high-pass filters (HPF) and low-pass filters (LPF)\u003c\/strong\u003e for optimal customization\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eBandpass and Bass Boost function\u003c\/strong\u003e (0-12 dB)\u003c\/li\u003e\n\n\u003cli\u003e \n\u003cstrong\u003eCopy mode\u003c\/strong\u003e to duplicate CH3\/4 settings to CH1\/2\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eHigh-level inputs with automatic activation (Auto Turn-On Function)\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eMOSFET PWM power supply and 3-way protection circuit\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eStart\/Stop Ready mode\u003c\/strong\u003e compatible with modern vehicles\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eCompact level remote control included\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e 📊 Technical specifications \u003c\/h2\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 150\/225 Watts @ 4Ω\/2Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eBridged RMS power\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 2 x 450 Watts @ 4Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eHigh-pass filter (HPF) CH1\/2\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 50 - 5000 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eHigh-pass filter (HPF) CH3\/4\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 10 - 500 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eLow-pass filter (LPF) CH3\/4\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 50 - 5000 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eBass Boost\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 0 - 12 dB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eBandpass function\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 \u0026gt; CH1\/2\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eInput selector\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\u003eDimensions\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e 280 x 46 x 165 mm\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 84%\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 \u003ch2\u003e📦 Package Contents\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cstrong\u003e1 ESX QE900.4 Amplifier\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eCompact level 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\u003ch2\u003e 📎 Additional accessories (sold separately)\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e \u003cstrong\u003eHigh quality power cables\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eShielded RCA cables\u003c\/strong\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cstrong\u003eCompatible speakers and 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\/qe900.4.pdf\" target=\"_blank\" title=\"ESX QE900.4 – 900 Watts 4-Channel Class D Digital Amplifier\" rel=\"noopener\"\u003e\u003cstrong\u003eESX QE900.4 Instructions (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e The \u003cstrong\u003eESX QE900.4\u003c\/strong\u003e is the ideal amplifier for car audio enthusiasts looking for \u003cstrong\u003ereliable power\u003c\/strong\u003e , \u003cstrong\u003eaudiophile sound\u003c\/strong\u003e , and \u003cstrong\u003ea complete absence of radio interference\u003c\/strong\u003e . Thanks to its advanced filters and \u003cstrong\u003eEPS® circuitry\u003c\/strong\u003e , it ensures an unparalleled sound experience. \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 QE900.4 – 900 Watts 4-Channel Class D Digital Amplifier\"\u003e\u003c\/div\u003e","brand":"ESX","offers":[{"title":"Default Title","offer_id":46577450418443,"sku":"QE900.4","price":349.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1928\/3723\/files\/ESX-ESX-QE900.4-_-Amplificateur-4-Canaux-Class-D-Digital-900-Watts-Multison-177513698.jpg?v=1738950370","url":"https:\/\/mumltisun.com\/en\/products\/esx-qe900-4-amplificateur-4-canaux-class-d-digital-900-watts","provider":"mumltisun.com","version":"1.0","type":"link"}