{"product_id":"reiss-rs-w4120-4-4-ohms","title":"Reiss RS-W4120.4 4 Ohms","description":"\u003ch2\u003eHighlights\u003c\/h2\u003e\u003cul\u003e\n\n\u003cli\u003e120W RMS x4 @ 4 Ohms – real power for demanding speakers\u003c\/li\u003e\n\n\u003cli\u003eBridgeable: 320W RMS x2 @ 4 Ohms to power mid-bass drivers or a compact subwoofer\u003c\/li\u003e\n\n\u003cli\u003eClass AB for analog sound warmth and natural music reproduction\u003c\/li\u003e\n\n\u003cli\u003eAdjustable high-pass filter 100–1,000 Hz and low-pass filter 40–400 Hz\u003c\/li\u003e\n\n\u003cli\u003eBass Boost 0–12 dB to enhance bass according to your preferences\u003c\/li\u003e\n\n\u003cli\u003eDamping factor \u0026gt; 170 for tight and controlled bass\u003c\/li\u003e\n\n\u003cli\u003eSignal-to-noise ratio \u0026gt; 90 dB for clear and dynamic sound at high volume\u003c\/li\u003e\n\n\u003cli\u003eAdjustable input sensitivity 0.2–6V: compatible with original car radios and aftermarket DSPs\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThe Reiss RS-W4120.4 is the flagship model of Reiss's AB series, designed to combine raw power and acoustic finesse in a single unit. This 4-channel Class AB amplifier combines analog warmth with precise control – ideal for those who want to power a high-performance front stage system or a complete installation with dynamism and precision.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003eWith 120W RMS per channel @ 4 Ohms and up to 160W RMS @ 2 Ohms, it has enough power to drive the most demanding speakers. In bridged configuration, it delivers 320W RMS x2 @ 4 Ohms to power mid-bass drivers or a compact subwoofer with strength and control.\u003c\/li\u003e\n\n\u003cli\u003eIts wide frequency range (10–20,000 Hz) ensures natural reproduction with clear separation and rich details across the entire spectrum.\u003c\/li\u003e\n\n\u003cli\u003eAdjustable filters (HP 100–1,000 Hz \/ LP 40–400 Hz) offer great flexibility for active setups, while the Bass Boost (0–12 dB) allows bass adjustment according to the installation.\u003c\/li\u003e\n\n\u003cli\u003eThe adjustable input sensitivity (0.2–6V) makes it compatible with both original car radios and aftermarket DSP processors.\u003c\/li\u003e\n\n\u003cli\u003eThree 35A fuses ensure stable power delivery even under high load, and the aluminum chassis guarantees efficient cooling and long-term durability.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003eAvailable at Sound Auto Concept, your car audio specialist.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\u003ctbody\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eReference\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003eRS-W4120.4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eClass\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003eAB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eRMS Power @ 4Ω\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e4 x 120 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eRMS Power @ 2Ω\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e4 x 160 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eBridged Power @ 4Ω\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e2 x 320 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e10 – 20,000 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eHigh-Pass Filter (HP)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e100 – 1,000 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eLow-Pass Filter (LP)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e40 – 400 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eBass Boost\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e0 – 12 dB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eDamping Factor\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u0026gt; 170\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e9 – 16 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eInput Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e0.2 – 6 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eFuses\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e3 x 35A\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eSignal-to-Noise Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u0026gt; 90 dB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e379 × 182 × 54 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"border: 1px solid #ddd;\"\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e\u003cstrong\u003eEAN \/ GTIN\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ddd; padding: 6px 10px;\"\u003e8698814101871\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy choose it?\u003c\/h2\u003e\u003cul\u003e\n\n\u003cli\u003eClass AB for analog sound warmth appreciated by audiophiles\u003c\/li\u003e\n\n\u003cli\u003e4 versatile channels: complete front stage system or bridged configuration for subwoofer\u003c\/li\u003e\n\n\u003cli\u003eAdjustable HP and LP filters for precise integration into any active system\u003c\/li\u003e\n\n\u003cli\u003eCompatible with original car radios and DSP due to adjustable input sensitivity\u003c\/li\u003e\n\n\u003cli\u003eDamping factor \u0026gt; 170 for controlled and defined bass\u003c\/li\u003e\n\n\u003cli\u003eRobust aluminum chassis for optimal cooling and long lifespan\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp style=\"color: red;\"\u003e\u003cstrong\u003e⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier at the impedance recommended by the manufacturer and to use the recommended wiring size. For amplifiers over 2000W RMS, the vehicle's original battery is no longer sufficient. It is strongly advised to adapt the electrical supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of damage and ensure optimal performance. WARNING: Any voltage drop below 12V can damage the product.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Reiss audio","offers":[{"title":"Default Title","offer_id":54518498165059,"sku":"RS-W4120.4","price":139.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6247\/4051\/files\/RS-W4120-4_1.webp?v=1780318830","url":"https:\/\/soundautoconcept.com\/en\/products\/reiss-rs-w4120-4-4-ohms","provider":"Sound Auto Concept","version":"1.0","type":"link"}