DS18 HYDRO Full Range Digital Marine 4-Channel Amplifier - 720W

Product Overview

Upgrade your marine audio system with the DS18 NXL Series 4-Channel Marine Amplifier (NXL-N4), engineered for boats, wake towers, and powersports vehicles.

With 720 watts max output, IPX67 waterproof rating, ultra-compact size, and bridgeable channels, this amplifier delivers clean, distortion-free audio for mids, tweeters, and subwoofers.

Perfect for high-performance marine or powersports setups, it’s designed to survive harsh environments while providing precision sound quality.

Compatible with a variety of speaker setups, the NXL-N4 amplifier is ideal for:

• Marine audio systems
• Wake tower speaker setups
• Powersports vehicles (jetski, side-by-side, ATV)
• Subwoofer integration for full-range sound
• Compact installations where space is limited

Key Features

• Stable and reliable 4-layer PCB layout for long-lasting performance
• IPX67 waterproof rating – fully submersible for marine and powersports applications
• Ultra-compact size for easy installation in tight spaces
• Audio precision quality control verification for unmatched sound clarity
• Full-range design – run on subs, mids, or tweeters
• Bridgeable channels for flexible speaker configurations

Technical Specifications

• Channels: 4
• Frequency Range: 20Hz – 20kHz
• Maximum Power: 720W
• 2 Ohm RMS Power per Channel: 150W x 4
• 4 Ohm RMS Power per Channel: 100W x 4
• 4 Ohm Bridged Power: 260W x 2
• Signal-to-Noise Ratio: 90 dB
• Dimensions (L x W x H): 200mm x 93.4mm x 39.8mm
• Bridgeable: Yes
• Waterproof Rating: IPX67 (Submersible)
• Sold as Individual Unit

What’s Included in the Box

• DS18 NXL Series 4-Channel Marine Amplifier (NXL-N4)
• Mounting hardware
• Power and speaker connectors
• Instruction manual
• 3-Year Manufacturer Warranty

Why Choose the DS18 NXL 4-Channel Amplifier?

• Perfect for marine audio enthusiasts, boaters, and powersports riders who demand reliable, high-output audio
• Designed for harsh marine environments – withstands salt, moisture, and vibration
• Small footprint allows installation in tight locations without sacrificing power
• Bridgeable channels let you customize for subwoofers or multi-zone speaker setups
• Ideal for wake towers, cockpit systems, or full boat sound systems

Applications & Compatibility

• Wake tower marine audio systems
• Full-range cockpit speaker setups
• Powersports vehicles including side-by-sides and jet skis
• Subwoofer integration for powerful low-end
• Compact installations requiring high performance in small spaces

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.