Upgrade your marine audio system with the DS18 NXL-M4 4-channel marine amplifier (1800W peak).
Designed for boats, pontoons, personal watercraft, ATVs, and custom marine audio setups, this amplifier delivers powerful, distortion-free sound in a compact footprint, perfect for tight helm spaces, under-seat installations, or wave runner setups.
Its Class D digital design, IPX5 water-resistance, and UV-protected, corrosion-resistant hardware ensure reliability and durability in the harshest marine environments.
Perfect for: Wake tower systems, cockpit speakers, marine stereo upgrades, high-output subwoofer setups, and compact watercraft audio systems.
Features
High-Power Marine Audio Amplifier
- 4 x 150W RMS @ 4 Ohms for clean, distortion-free sound
- 4 x 230W RMS @ 2 Ohms for multiple speakers per channel
- 2 x 440W RMS @ 4 Ohms bridged for subwoofers or high-output zones
- 1800W peak power for dynamic, impactful audio
- Class D digital amplifier for high efficiency, low heat, and consistent power delivery
Full-Range Amplifier
- Drives marine speakers with precise, well-defined audio
- Ideal for wake towers, cockpit systems, and full-boat audio setups
Fully Adjustable Audio Controls
- Variable bass boost, high-pass filter, and low-pass filter for precise tuning
- LED clip indicator for easy gain adjustment and distortion monitoring
- High-level inputs for direct connection to factory or aftermarket radios
Built for the Marine Environment
- IPX5 water-resistant rating protects against splashes and spray
- UV-protected, corrosion-resistant hardware for long-term marine durability
- Coated 4-layer PCB prevents saltwater corrosion
- Protective front control cover shields settings from water and debris
- Advanced protection circuits: thermal, voltage, and short-circuit protection
Compact & Installation-Friendly
- Ultra-compact footprint: 9.6" x 4.5" x 1.7"
- Direct-insert power and speaker terminals simplify wiring
- Perfect for tight helm spaces, under seats, and personal watercraft
Sound Quality & Reliability
- Sound verified with Audio Precision (AP) instruments
- Signal-to-noise ratio: >90dB for clean, powerful output
- Frequency response: 20Hz – 20kHz
What’s Included in the Box
- DS18 NXL-M4 4-Channel Marine Amplifier
- Protective front control cover
- Owner’s documentation
Technical Specifications
- Channels: 4
- Bridgeable: Yes
- Impedance Stability: 2 Ohms
- Sold as: Individual unit
Why Choose DS18 NXL-M4?
With its compact design, high-output Class D amplification, and True-Marine durability, the DS18 NXL-M4 is engineered for boat owners and marine audio enthusiasts who demand premium sound quality, space-saving installation, and reliability in saltwater environments. Perfect for wake towers, pontoons, and PWCs, this amplifier ensures every ride is powered by clear, high-fidelity audio.
Owner's Manual (pdf)
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
