DS18 HYDRO Full Range Digital Marine 4-Channel Amplifier - 720W [NXL-N4]

DS18 HYDRO Full Range Digital Marine 4-Channel Amplifier - 720W [NXL-N4]

  • $279.95
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HYDRO Full Range Digital Marine 4-Channel Amplifier - 720W

Whether you are the type of audio enthusiast that likes to hit the open road on his bike, ride the rough trails on your side by side, or cruise the open waters, you are going to need a powerful and waterproof rated  amp that has a small footprint and also make great power. 

DS18 has a line just for the job with the NXL series of amplifiers to power your whole system. This 4 channel amplifier helps you accommodate for all your different speaker setups without having to look further. Being a full range amps, these can be run on subs, mids, or tweeters because of the internal design of the amp. 

All units have stable and reliable 4-layer PCB layouts, IPX67 rated for power sports, has an ultra-compact size for easy installation, and has audio precision quality control verification.


  • Stable and reliable 4 layers PCB layout design
  • IPX67 Waterproof for Powersports applications
  • Ultra compact size for easy installation
  • Audio precision quality control verification 

Technical Specifications:

  • Number of Channels: 4
  • Frequency Range: 20Hz - 20KHz
  • Max Power:    720W 
  • 2 Ohm RMS Power Per Channel: 150W x 4
  • 4 Ohm RMS Power Per Channel: 100W x 4
  • 4 Ohm Bridged Power Per Channel:  260W x 2
  • Signal-to-Noise Ratio: 90 dB
  • Dimensions (L x W x H) - 200mm x 93.4mm x 39.8mm

*Sold as an Individual

WarningWARNING: 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.


  • Channels - Available: 4
  • Bridgeable: Yes
  • Watts: 720w
  • Waterproof Rating: Submersible
  • Box Dimensions: 3"H x 5"W x 10"L WT: 2.7 lbs
  • UPC: 810005180603

Owner's Manual (pdf)