{"product_id":"cadence-sound-sqa600-1-mono-marine-class-d-amplifier","title":"Cadence Sound SQA600.1 Mono Marine Class D Amplifier 600W RMS","description":"\u003ch3\u003eMarine-Grade Mono Power Cadence Sound SQA600.1 Mono Marine Class D Amplifier\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Closeout Item — Final Sale. All sales are final. Item is new unless otherwise noted.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you need dedicated subwoofer power that can handle the elements, the \u003cstrong\u003eCadence Sound SQA600.1\u003c\/strong\u003e delivers. This mono Class D marine amplifier puts out 600W RMS at 1 ohm — enough to drive a serious subwoofer on your boat, Jeep, or any build where moisture and corrosion are a concern. With a conformal-coated PCB, THD under 0.05%, and a signal-to-noise ratio over 96dB, this amp is built to perform cleanly and reliably in freshwater and saltwater environments alike. At a closeout price, it's one of the best value marine mono amps on the market.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600W RMS @ 1 Ohm:\u003c\/strong\u003e Serious mono subwoofer power in a compact, marine-rated chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-Rated Conformal Coating:\u003c\/strong\u003e PCB is coated for exceptional corrosion resistance in freshwater and saltwater environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD \u0026lt; 0.05%:\u003c\/strong\u003e Extremely low distortion for clean, accurate bass reproduction at any output level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio \u0026gt; 96dB:\u003c\/strong\u003e Ultra-quiet noise floor for tight, defined bass without hiss or hum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Low Pass Filter (50Hz–150Hz):\u003c\/strong\u003e Dial in your crossover point to match your subwoofer and enclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubsonic Filter (10Hz–50Hz):\u003c\/strong\u003e Protects your subwoofer from damaging infrasonic frequencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Bass Boost (0–18dB):\u003c\/strong\u003e Add punch and impact to your low-end without distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Phase \u0026amp; Slope Ranges:\u003c\/strong\u003e Fine-tune the low pass filter slope and phase for precise integration with your system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Level Control Included:\u003c\/strong\u003e Adjust subwoofer output from the driver's seat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Audio Volume Control:\u003c\/strong\u003e Precise, transparent level adjustment with no coloration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal\/Overload \u0026amp; Speaker Short Protection:\u003c\/strong\u003e Built-in protection circuits keep the amp and your subwoofer safe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Power \u0026amp; Protection Indicators:\u003c\/strong\u003e At-a-glance status monitoring for quick diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Turn-On Circuit:\u003c\/strong\u003e Eliminates power-on pop for a clean, professional installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Screws \u0026amp; Metal Mounting Feet:\u003c\/strong\u003e Durable hardware built for marine environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass D Efficiency \u0026gt; 80%:\u003c\/strong\u003e Runs cool and puts less strain on your charging system even at high output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRMS @ 1 Ohm (14.4V): 600W x 1\u003c\/li\u003e\n\u003cli\u003eRMS @ 2 Ohm (14.4V): 420W x 1\u003c\/li\u003e\n\u003cli\u003eRMS @ 4 Ohm (14.4V): 240W x 1\u003c\/li\u003e\n\u003cli\u003eFuse Rating: 40A x 2\u003c\/li\u003e\n\u003cli\u003eTHD: \u0026lt; 0.05%\u003c\/li\u003e\n\u003cli\u003eSNR: \u0026gt; 96dB\u003c\/li\u003e\n\u003cli\u003eEfficiency: \u0026gt; 80%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e9.0\" W x 1.9\" H x 7.3\" D (228mm x 48mm x 185mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy the Cadence SQA600.1?\u003c\/h3\u003e\n\u003cp\u003eThis mono marine amplifier is the ideal choice for anyone building a subwoofer system on a boat, off-road vehicle, or any application where moisture resistance is a must. The compact footprint fits tight installs, the Class D efficiency keeps heat low, and the full suite of crossover and bass boost controls gives you everything you need to dial in your bass perfectly. At closeout pricing, it's a serious amp at a fraction of the original cost.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eProfessional installation available at Best Auto Sound \u0026amp; Security in Central Texas. Contact us to schedule your build.\u003c\/em\u003e\u003c\/p\u003e","brand":"Cadence Sound","offers":[{"title":"Default Title","offer_id":44025643466865,"sku":"SQA600.1","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/4884\/5937\/files\/Screenshot_13-8-2026_121648_cadencesound.com.jpg?v=1786641645","url":"https:\/\/12volttoys.com\/products\/cadence-sound-sqa600-1-mono-marine-class-d-amplifier","provider":"Best Auto Sound \u0026 Security","version":"1.0","type":"link"}