{"product_id":"soundmax-sx-lx4125-4d","title":"Soundmax SX-LX4125.4D 4 Ohms","description":"\u003ch2\u003eHighlights\u003c\/h2\u003e\u003cul\u003e\n\n\u003cli\u003e125W RMS x 4 @ 4 Ohms – stable and clean power for front or rear stage systems\u003c\/li\u003e\n\n\u003cli\u003eHigh-efficiency Class D – low consumption, minimal heat, ideal for small spaces\u003c\/li\u003e\n\n\u003cli\u003e190W RMS x 4 @ 2 Ohms \/ 370W RMS x 2 bridged @ 4 Ohms – total flexibility\u003c\/li\u003e\n\n\u003cli\u003eFrequency response 10 Hz – 45,000 Hz: absolute precision across the entire audio spectrum\u003c\/li\u003e\n\n\u003cli\u003eAdjustable HP (50–500 Hz) + LP (50–250 Hz) filters for precise active filtering\u003c\/li\u003e\n\n\u003cli\u003eHigh-Level input – direct OEM integration without an adapter\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThe Soundmax SX-LX4125.4D is a 4-channel Class D amplifier designed for those seeking stable power, low heat generation, and great flexibility in a compact form factor. With 125W RMS per channel at 4 Ohms, it effectively drives front stage speakers, rear speakers, or moderate-sized midbass with control and clarity. Its ability to operate at 2 Ohms (190W\/channel) and in bridged mode (2 x 370W) makes it suitable for many configurations.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003eAdjustable high-pass filter: 50 – 500 Hz\u003c\/li\u003e\n\n\u003cli\u003eAdjustable low-pass filter: 50 – 250 Hz\u003c\/li\u003e\n\n\u003cli\u003eInput sensitivity: 0.25 – 8V – compatible with OEM and aftermarket sources\u003c\/li\u003e\n\n\u003cli\u003eHigh-Level input for direct connection to factory head units\u003c\/li\u003e\n\n\u003cli\u003eSNR 90 dB: clean sound without interference\u003c\/li\u003e\n\n\u003cli\u003eAvailable at Sound Auto Concept, your car audio specialist.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eNumber of channels\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"1px solid #ccc; padding: 6px 10px;\"\u003e4 channels\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eClass\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003eClass D\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eRMS Power @ 4 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e4 x 125W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eRMS Power @ 2 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e4 x 190W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eBridged RMS Power @ 4 Ohms\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e2 x 370W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e10 – 45,000 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eHigh-pass filter\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e50 – 500 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eLow-pass filter\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e50 – 250 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eHigh-level input\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003eYes\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eInput sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e0.25 – 8V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eSignal-to-noise ratio\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e90 dB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"border: 1px solid #ccc; padding: 6px 10px;\"\u003eSX-LX4125.4D\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\u003eCompact Class D: maximum efficiency, minimal heat, easy installation anywhere\u003c\/li\u003e\n\n\u003cli\u003e125W x 4 with the possibility to go up to 190W x 4 @ 2Ω or 370W x 2 bridged\u003c\/li\u003e\n\n\u003cli\u003eAdjustable HP + LP filters: perfect for active or passive configurations\u003c\/li\u003e\n\n\u003cli\u003eHigh-Level input: OEM integration without additional DSP or adapter\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 to the impedance recommended by the manufacturer and to use the recommended wire gauge. For amplifiers over 2000W RMS, the vehicle's original battery is no longer sufficient. It is strongly advised to adapt the power 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":"Soundmax","offers":[{"title":"Default Title","offer_id":54587067859267,"sku":"SX-LX4125.4D","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6247\/4051\/files\/139c_20251121162731_7731794.webp?v=1782376053","url":"https:\/\/soundautoconcept.com\/en-eu\/products\/soundmax-sx-lx4125-4d","provider":"Sound Auto Concept","version":"1.0","type":"link"}