Down4Sound M3-1004 | 700W RMS Marine 4-Channel Amplifier

DOWN4SOUND M3-1004 Marine & Powersports 4-Channel Amplifier – 700W RMS Class D

The DOWN4SOUND M3-1004 Marine & Off-Road Amplifier is a compact 4-channel Class D amplifier delivering 700 watts RMS of clean, efficient power for boats, jet skis, side-by-sides, UTVs, motorcycles, mud trucks, and off-road builds.

Engineered for demanding marine and outdoor environments, this amplifier features a sealed aluminum chassis, conformal-coated internal PCB, and corrosion-resistant terminals designed to withstand moisture, salt air, mud, vibration, and real-world exposure.

With proper installation, the M3-1004 is built to handle extreme marine conditions, including high-moisture and water-exposed applications. Whether mounted in a wake boat hull, jet ski compartment, motorcycle saddlebag, side-by-side dash, mud truck cab, or custom off-road build, it delivers reliable performance with confidence.

Green/Orange/Blue Glow Finish

The housing features Glowtek Green/Orange/Blue technology, a glow-in-the-dark finish that charges from natural sunlight or artificial light sources. Please note: Black Gloss & White Gloss do not glow.

• Charges from any natural or artificial light source
• Emits a visible glow in low-light and dark environments
• Glow effect naturally dissipates over time as stored light energy is released
• Rechargeable, exposure to light renews the glow effect repeatedly
• No wiring, batteries, or external power required for illumination

The glow intensity gradually fades as energy dissipates and can be restored anytime by re-exposing the surface to light. The finish delivers a clean, aggressive aesthetic for night runs, dock presence, and show builds without affecting amplifier performance or reliability.

Power Output

• 4 × 100W RMS @ 4 ohms
• 4 × 160W RMS @ 2 ohms
• 2 × 330W RMS @ 4 ohms bridged
• 700W RMS total output

Full-range Class D design ensures high efficiency and reduced heat, ideal for marine and powersports electrical systems.

Built for Marine & Off-Road Environments

• Marine-grade construction
• Sealed aluminum housing
• Conformal-coated internal PCB
• Water Resistant Construction
• Weather Resistant Construction
• Corrosion-resistant terminals
• Designed for high-moisture and water-exposed installations
• Engineered for vibration resistance in marine and off-road conditions

Precision Crossovers – Band-Pass Capable

• Adjustable HPF & LPF: 20Hz–800Hz
• Band-pass capable using onboard crossovers
• 41-point dial control for accurate system tuning

Flexible integration for speakers, midrange drivers, and compact subwoofer setups.

Compact Installation Size

• 9.84" × 5.11" × 2.38"
• 250 × 130 × 60 mm

Perfect for tight installs in:

• Wake boats
• Pontoon boats
• Jet boats
• Jet skis
• Motorcycle baggers
• Side-by-sides & UTVs
• Mud trucks
• Overland rigs
• Off-road builds
• Custom show systems

Smart 4-Way Protection Circuit

• Thermal protection
• Voltage protection
• Short circuit protection
• DC overload protection

Designed for stable performance in demanding marine and powersports electrical systems.

Technical Specifications

• Total Power Output: 700W RMS
• Channels: 4
• Class: Full-Range Class D
• Frequency Response: 10Hz–23.7kHz
• Input Sensitivity: 0.2V–6V
• THD: <0.1%
• Signal-to-Noise Ratio: >83dB
• Operating Voltage: 9V–15.5V
• Fuse Rating: 60A

Why Choose the M3-1004?

Because power, durability, and bold design should perform anywhere — on water, in mud, or on the trail.

• The M3-1004 delivers dependable marine and off-road audio performance in a compact, installation-friendly chassis built for real-world conditions.
• Built for boats.
• Built for powersports.
• Built for on-road and off-road systems that demand reliability.

Add it to your setup and keep your install powerful, clean, and ready for the elements.