Cadence Sound SQA600.1 Mono Marine Class D Amplifier 600W RMS

Marine-Grade Mono Power Cadence Sound SQA600.1 Mono Marine Class D Amplifier

⚠️ Closeout Item — Final Sale. All sales are final. Item is new unless otherwise noted.

When you need dedicated subwoofer power that can handle the elements, the Cadence Sound SQA600.1 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.

Key Features

• 600W RMS @ 1 Ohm: Serious mono subwoofer power in a compact, marine-rated chassis.
• Marine-Rated Conformal Coating: PCB is coated for exceptional corrosion resistance in freshwater and saltwater environments.
• THD < 0.05%: Extremely low distortion for clean, accurate bass reproduction at any output level.
• Signal-to-Noise Ratio > 96dB: Ultra-quiet noise floor for tight, defined bass without hiss or hum.
• Selectable Low Pass Filter (50Hz–150Hz): Dial in your crossover point to match your subwoofer and enclosure.
• Subsonic Filter (10Hz–50Hz): Protects your subwoofer from damaging infrasonic frequencies.
• Adjustable Bass Boost (0–18dB): Add punch and impact to your low-end without distortion.
• Selectable Phase & Slope Ranges: Fine-tune the low pass filter slope and phase for precise integration with your system.
• Remote Level Control Included: Adjust subwoofer output from the driver's seat.
• True Audio Volume Control: Precise, transparent level adjustment with no coloration.
• Thermal/Overload & Speaker Short Protection: Built-in protection circuits keep the amp and your subwoofer safe.
• LED Power & Protection Indicators: At-a-glance status monitoring for quick diagnostics.
• Soft Turn-On Circuit: Eliminates power-on pop for a clean, professional installation.
• Stainless Steel Screws & Metal Mounting Feet: Durable hardware built for marine environments.
• Class D Efficiency > 80%: Runs cool and puts less strain on your charging system even at high output.

Power Specifications

• RMS @ 1 Ohm (14.4V): 600W x 1
• RMS @ 2 Ohm (14.4V): 420W x 1
• RMS @ 4 Ohm (14.4V): 240W x 1
• Fuse Rating: 40A x 2
• THD: < 0.05%
• SNR: > 96dB
• Efficiency: > 80%

Dimensions

• 9.0" W x 1.9" H x 7.3" D (228mm x 48mm x 185mm)

Why the Cadence SQA600.1?

This 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.

Professional installation available at Best Auto Sound & Security in Central Texas. Contact us to schedule your build.