{"product_id":"skar-audio-sa-125-4d-720w-4-channel-class-d-car-amplifier","title":"Skar Audio SA-125.4D: 720W 4-Channel Class D Car Amplifier","description":"\u003ch2\u003eMeet the Skar Audio SA-125.4D — compact power for your car audio system\u003c\/h2\u003e\n\u003cp\u003eThe SA-125.4D is a 720-watt, four-channel Class D amplifier designed to bring clear, efficient power to a multi-speaker setup. With RMS ratings of 180W x 4 at 2 ohms and 125W x 4 at 4 ohms, it delivers confident performance for front, rear, or a combination in mid-sized cars and trucks. The ability to bridge channels to 285W x 2 at 4 ohms adds versatility for pairing with a subwoofer or a high-power mid\/high duo, depending on your goals.\u003c\/p\u003e\n\u003cp\u003eFlexibility is built in, starting with a broad operating voltage range of 8.5V to 16V to accommodate different vehicle electrical systems. Crossover controls include HPF, Full-Range, and LPF, with independently adjustable gain and crossover frequencies for the first pair of channels and the second pair. This setup lets you sculpt the sound stage—whether you’re aiming for crisp highs, punchy mids, or a balanced, full-range experience across the cabin.\u003c\/p\u003e\n\u003ch3\u003eKey features at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e720 Watt, four-channel Class D amplifier for efficient performance\u003c\/li\u003e\n  \u003cli\u003eRMS power: 180W x 4 (2Ω) | 125W x 4 (4Ω) | Bridged: 285W x 2 (4Ω)\u003c\/li\u003e\n  \u003cli\u003eFlexible voltage 8.5V–16V to match vehicle electrical systems\u003c\/li\u003e\n  \u003cli\u003eCrossover options: HPF \/ Full-Range \/ LPF with per-pair gain and frequency control\u003c\/li\u003e\n  \u003cli\u003eFrequency response from 10 Hz up to 25 kHz for wide musical content\u003c\/li\u003e\n  \u003cli\u003e4 AWG power\/ground input for sturdy, reliable wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy choose this amp?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eClass D design helps keep heat manageable while preserving audio fidelity\u003c\/li\u003e\n  \u003cli\u003eCompact footprint supports installation under seats or in tight trunks\u003c\/li\u003e\n  \u003cli\u003eDedicated controls for tuning give you room to optimize your system without sacrificing space\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePractical setup tips: plan your wiring with a clean layout, ensure adequate ventilation, and pair the SA-125.4D with compatible speakers that match your desired impedance. This description highlights the data-driven capabilities without promising specific results for every vehicle.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes the Skar Audio SA-125.4D suitable for a four-channel setup?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It delivers 720W total across four channels with flexible gains and crossovers for clean multi-speaker power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the wiring and voltage requirements for the SA-125.4D?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Uses 4 AWG power\/ground wiring and operates from 8.5V to 16V for compatibility with many vehicle electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Skar Audio","offers":[{"title":"Default Title","offer_id":48406929277085,"sku":"B0DQFDF88M","price":350.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/skar-audio-sa-125-4d-front-panel.jpg?v=1781146260","url":"https:\/\/nexoltic.com\/products\/skar-audio-sa-125-4d-720w-4-channel-class-d-car-amplifier","provider":"Nexoltic","version":"1.0","type":"link"}