{"product_id":"esx-qs-four-amplificateur-numerique-4-canaux-class-d-ultra-compact","title":"ESX QS-FOUR – Ultra Compact 4-Channel Class D Digital Amplifier","description":"\u003ch2\u003e ESX QS-FOUR – Ultra Compact 4-Channel Class D Digital Amplifier\u003c\/h2\u003e\n\n\u003cstyle\u003e\n    table {\n        width: 100%;\n        border-collapse: collapse;\n        background-color: #E0F7FA; \/* Bleu ciel *\/\n    }\n    th, td {\n        border: 1px solid #0288D1;\n        padding: 10px;\n        text-align: left;\n    }\n    th {\n        background-color: #0288D1;\n        color: white;\n    }\n    p {\n        margin-top: 10px;\n    }\n\u003c\/style\u003e\n\u003cp class=\"\" data-end=\"406\" data-start=\"377\"\u003e \u003cstrong data-end=\"406\" data-start=\"377\"\u003eESX QS-FOUR Product Overview:\u003c\/strong\u003e\u003c\/p\u003e\n\n \u003cp class=\"\" data-end=\"730\" data-start=\"408\"\u003eThe \u003cstrong data-end=\"439\" data-start=\"424\"\u003eESX QS-FOUR\u003c\/strong\u003e amplifier is the perfect answer for those looking to add power to their original audio system \u003cstrong data-end=\"574\" data-start=\"545\"\u003ewithout major modifications\u003c\/strong\u003e . The successor to the famous \u003cstrong data-end=\"608\" data-start=\"598\"\u003eQS-TWO\u003c\/strong\u003e , it maintains a \u003cstrong data-end=\"637\" data-start=\"629\"\u003enano\u003c\/strong\u003e format while offering \u003cstrong data-end=\"676\" data-start=\"654\"\u003e4 powerful channels\u003c\/strong\u003e in a slightly larger enclosure (90 x 35 x 80 mm).\u003c\/p\u003e\n\n \u003cp class=\"\" data-end=\"1079\" data-start=\"732\"\u003eWith \u003cstrong data-end=\"765\" data-start=\"737\"\u003eup to 4 x 60 Watts RMS\u003c\/strong\u003e , this Class D amplifier far exceeds the performance of amplifiers integrated into original car radios, while maintaining \u003cstrong data-end=\"936\" data-start=\"897\"\u003every low power consumption\u003c\/strong\u003e (5 to 10 A on average). Ideal for \u003cstrong data-end=\"1000\" data-start=\"975\"\u003ediscreet installation\u003c\/strong\u003e behind the dashboard, especially in vehicles with ISO connectors. \u003c\/p\u003e\n\n\u003chr class=\"\" data-end=\"1084\" data-start=\"1081\"\u003e\n\n\u003ch3 class=\"\" data-end=\"1125\" data-start=\"1086\"\u003e ⚙️ \u003cstrong data-end=\"1125\" data-start=\"1093\"\u003eMain Features\u003c\/strong\u003e \n\n\u003c\/h3\u003e\n\n\u003cdiv class=\"overflow-x-auto contain-inline-size\"\u003e\n\n\u003ctable data-end=\"2513\" data-start=\"1127\"\u003e\n\n\u003cthead data-end=\"1226\" data-start=\"1127\"\u003e\n\n\u003ctr data-end=\"1226\" data-start=\"1127\"\u003e\n\n\u003cth data-end=\"1171\" data-start=\"1127\"\u003e \u003cstrong data-end=\"1147\" data-start=\"1129\"\u003eSpecifications\u003c\/strong\u003e\n\u003c\/th\u003e\n\n\u003cth data-end=\"1226\" data-start=\"1171\"\u003e \u003cstrong data-end=\"1184\" data-start=\"1173\"\u003eDetails\u003c\/strong\u003e \u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody data-end=\"2513\" data-start=\"1325\"\u003e\n\n\u003ctr data-end=\"1423\" data-start=\"1325\"\u003e\n\n\u003ctd\u003e 🔊 \u003cstrong data-end=\"1338\" data-start=\"1330\"\u003eType\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e 4-channel Class D digital amplifier\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"1523\" data-start=\"1424\"\u003e\n\n\u003ctd\u003e 📏 \u003cstrong data-end=\"1443\" data-start=\"1429\"\u003eDimensions\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e 90 x 35 x 80 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"1622\" data-start=\"1524\"\u003e\n\n\u003ctd\u003e ⚡ \u003cstrong data-end=\"1545\" data-start=\"1528\"\u003eRMS power\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e 4 x 35\/45\/60 W @ 4\/3\/2 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"1722\" data-start=\"1623\"\u003e\n\n \u003ctd\u003e🔗 \u003cstrong data-end=\"1642\" data-start=\"1628\"\u003eBridged mode\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e 2 x 120 W RMS @ 4 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"1822\" data-start=\"1723\"\u003e\n\n\u003ctd\u003e 🎚️ \u003cstrong data-end=\"1749\" data-start=\"1729\"\u003eBuilt-in filters\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e 2 x HPF\/LPF @ 80 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"1921\" data-start=\"1823\"\u003e\n\n\u003ctd\u003e 💡 \u003cstrong data-end=\"1843\" data-start=\"1828\"\u003eTechnology\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e High efficiency Class D (up to 90%)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2020\" data-start=\"1922\"\u003e\n\n\u003ctd\u003e 🔁 \u003cstrong data-end=\"1950\" data-start=\"1927\"\u003eHigh-level entries\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e With integrated EPS® protection\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2119\" data-start=\"2021\"\u003e\n\n\u003ctd\u003e 🎛️ \u003cstrong data-end=\"2046\" data-start=\"2027\"\u003eInputs\/outputs\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e Stereo cinch + output for active subwoofer \u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2217\" data-start=\"2120\"\u003e\n\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cbr\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2316\" data-start=\"2218\"\u003e\n\n\u003ctd\u003e 🔊 \u003cstrong data-end=\"2240\" data-start=\"2223\"\u003eAudio quality\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e THD+N \u0026lt; 0.007% at 5 W RMS, frequency up to 60 kHz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2414\" data-start=\"2317\"\u003e\n\n\u003ctd\u003e ⚙️ \u003cstrong data-end=\"2341\" data-start=\"2322\"\u003eFeatures\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e Automatic ignition, Start\/Stop compatible\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr data-end=\"2513\" data-start=\"2415\"\u003e\n\n\u003ctd\u003e 🧊 \u003cstrong data-end=\"2439\" data-start=\"2420\"\u003eCooling\u003c\/strong\u003e\n\n\u003c\/td\u003e\n\n\u003ctd\u003e Cast metal chassis with optimal dissipation \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 class=\"\" data-end=\"2518\" data-start=\"2515\"\u003e\n\n\u003ch3 class=\"\" data-end=\"2564\" data-start=\"2520\"\u003e 🔎 \u003cstrong data-end=\"2564\" data-start=\"2527\"\u003eWhy choose the ESX QS-FOUR?\u003c\/strong\u003e \n\n\u003c\/h3\u003e\n\n\u003cul data-end=\"2951\" data-start=\"2566\"\u003e\n\n\u003cli class=\"\" data-end=\"2625\" data-start=\"2566\"\u003e\n\n \u003cp class=\"\" data-end=\"2625\" data-start=\"2568\"\u003e\u003cstrong data-end=\"2592\" data-start=\"2575\"\u003eUltra-compact\u003c\/strong\u003e format, perfect for small spaces \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"2697\" data-start=\"2626\"\u003e\n\n\u003cp class=\"\" data-end=\"2697\" data-start=\"2628\"\u003e ISO compatible: \u003cstrong data-end=\"2697\" data-start=\"2645\"\u003eno additional power cable required\u003c\/strong\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"2757\" data-start=\"2698\"\u003e\n\n\u003cp class=\"\" data-end=\"2757\" data-start=\"2700\"\u003e Perfect for improving the sound of stock speakers \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"2813\" data-start=\"2758\"\u003e\n\n\u003cp class=\"\" data-end=\"2813\" data-start=\"2760\"\u003e Can power \u003cstrong data-end=\"2813\" data-start=\"2779\"\u003eactive or monoblock subwoofers\u003c\/strong\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"2876\" data-start=\"2814\"\u003e\n\n\u003cp class=\"\" data-end=\"2876\" data-start=\"2816\"\u003e Hi-Res sound quality thanks to an extended frequency range \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"2951\" data-start=\"2877\"\u003e\n\n\u003cp class=\"\" data-end=\"2951\" data-start=\"2879\"\u003e \u003cstrong data-end=\"2926\" data-start=\"2879\"\u003eIdeal for replacing the weak amplification\u003c\/strong\u003e of original car radios \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr class=\"\" data-end=\"2956\" data-start=\"2953\"\u003e\n\n\u003ch3 class=\"\" data-end=\"2985\" data-start=\"2958\"\u003e 📦 \u003cstrong data-end=\"2985\" data-start=\"2965\"\u003ePackage contents\u003c\/strong\u003e \n\n\u003c\/h3\u003e\n\n\u003cul data-end=\"3072\" data-start=\"2987\"\u003e\n\n\u003cli class=\"\" data-end=\"3016\" data-start=\"2987\"\u003e\n\n\u003cp class=\"\" data-end=\"3016\" data-start=\"2989\"\u003e ESX QS-FOUR Amplifier \u003cbr\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"3072\" data-start=\"3052\"\u003e\n\n\u003cp class=\"\" data-end=\"3072\" data-start=\"3054\"\u003e User Manual \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr class=\"\" data-end=\"3077\" data-start=\"3074\"\u003e\n\n\u003ch3 class=\"\" data-end=\"3105\" data-start=\"3079\"\u003e 📥 \u003cstrong data-end=\"3105\" data-start=\"3086\"\u003eDownloads\u003c\/strong\u003e \n\n\u003c\/h3\u003e\n\n\u003cul data-end=\"3240\" data-start=\"3107\"\u003e\n\n\u003cli class=\"\" data-end=\"3168\" data-start=\"3107\"\u003e\n\n \u003cp class=\"\" data-end=\"3168\" data-start=\"3109\"\u003e\u003ca title=\"ESX QS-FOUR – Ultra Compact 4-Channel Class D Digital Amplifier\" href=\"https:\/\/www.esxaudio.de\/assets\/qs-four.pdf\" rel=\"noopener\" data-end=\"3166\" data-start=\"3109\" target=\"_blank\"\u003e\u003cstrong data-end=\"3132\" data-start=\"3110\"\u003eUser Manual\u003c\/strong\u003e (PDF)\u003c\/a\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli class=\"\" data-end=\"3240\" data-start=\"3169\"\u003e\n\n\u003cp class=\"\" data-end=\"3240\" data-start=\"3171\"\u003e \u003ca title=\"ESX QS-FOUR – Ultra Compact 4-Channel Class D Digital Amplifier\" href=\"https:\/\/www.esxaudio.de\/assets\/qs-four_ch.pdf\" rel=\"noopener\" data-end=\"3240\" data-start=\"3171\" target=\"_blank\"\u003e\u003cstrong data-end=\"3206\" data-start=\"3172\"\u003eProduct Test \/ Technical Review\u003c\/strong\u003e (PDF)\u003c\/a\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003chr class=\"\" data-end=\"3245\" data-start=\"3242\"\u003e\n\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"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 QS-FOUR – Ultra Compact 4-Channel Class D Digital Amplifier\"\u003e\u003c\/div\u003e","brand":"ESX","offers":[{"title":"Default Title","offer_id":51217627775243,"sku":"QS-FOUR","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0770\/1928\/3723\/files\/ESX-ESX-QS-FOUR-_-Amplificateur-Num_rique-4-Canaux-Class-D-Ultra-Compact-Multison-183017412.jpg?v=1744015298","url":"https:\/\/mumltisun.com\/en\/products\/esx-qs-four-amplificateur-numerique-4-canaux-class-d-ultra-compact","provider":"mumltisun.com","version":"1.0","type":"link"}