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Description

DS18 NXL-N4

The DS18 NXL-N4 is a 4-channel full-range Class D marine and powersports amplifier from the Hydro-Nano series, engineered for rugged outdoor environments like boats, UTVs, ATVs, motorcycles, and more. It delivers reliable power in a compact, waterproof IP67-rated chassis, making it ideal for powering multiple speakers or driving a multi-zone audio setup with clarity and efficiency. The built-in selectable crossover lets you tailor the amp for different speaker types and configurations, and the compact design simplifies installation in tight spaces.


Specifications

Specification Details
SKU NXL-N4
Total Watts (Peak) 1800W
RMS Power @ 4Ω 4 × 100W
RMS Power @ 2Ω 4 × 150W
RMS Power @ 4Ω (Bridge) 2 × 300W

AUDIO
Specification Details
Frequency Response 20Hz – 20KHz
Signal to Noise Ratio (1W @ 4Ω) 90dB
Total Harmonic Distortion (THD) 0.1%
Low Level Input Range 200mV – 5V
Selectable X-Over HPF / LPF / FULL
X-Over Filter Range 40 – 500Hz
Bass Boost No
Infrasonic Filter No

FEATURES 1
Specification Details
Amplifier Class Digital
Amplifier Type Stereo Full Range
Number of Channels 4
Minimum Impedance 2Ω (Stereo) / 4Ω (Bridge)
LED Indicator Power / Protection
Power Input Size Wired 10Ga OFC
Fuse Size 25A
Thermal Protection Yes

FEATURES 2
Specification Details
Over-Load Protection Yes
DC Output Protection Yes
Short Circuit Output Protection Yes
Voltage Input Protection Yes (>15V)
Body Color Aluminum Black and Red
Waterproof Rating IPX67
Full Range Digital Design (IR Platform) Yes
Ultra Compact Design Yes
PCB Design Stable and Reliable 4-Layer Layout
Quality Control Verification AP Instruments

MEASUREMENT
Specification Details
Overall Length 7.87 in / 200 mm
Overall Width 3.67 in / 93.4 mm
Overall Height 1.56 in / 39.8 mm
Heatsink Length 7.16 in / 182 mm
Gross Single Unit Weight 2.8 lb / 1.3 kg
Product Weight 3 lb
Product Dimensions 10.25 × 5 × 3 in
Master Carton Weight 28 lb
Master Carton Dimensions 16 × 11 × 10.75 in
Master Carton Quantity 10
Sold In Piece

Product Overview

Nano Full-Range Digital Marine 4-Channel Amplifier 4 x 100W @ 4-Ohm RMS

DS18’s NXL-N4 is the ultimate power solution for audio enthusiasts on the move. Whether you’re hitting the open road on your bike, tearing through rough trails on your side by side, or cruising the open waters, this waterproof rated amp delivers exceptional performance in a compact package.
DS18’s NXL-N4 is designed to power your entire system with efficiency and precision. With a 4-channel configuration these amplifiers provide versatility for all your speaker setups. Thanks to the full range capability of this amplifier, you can run them on subs, mids, or tweeters.
Built with a stable and reliable 4-layer PCB layout design, the NXL-N4 ensure consistent performance even in challenging conditions. Rated IP67 for powersports applications, they are fully waterproof and ready to withstand the harshest environments. Plus, their ultra-compact size makes installation a breeze, fitting seamlessly into any setup.
The selectable X-Over feature allows you to customize your audio experience with options like LPF (Low Pass Filter), FULL range, and HPF (High Pass Filter), giving you full control over your sound.
Featuring a max power of 1800W and a frequency response of 20Hz – 20KHz, this amplifier delivers rich and immersive sound across all frequencies. With 4 x 150W of RMS power at 2 Ohms and 4 x 100W of RMS power at 4 Ohms, you can enjoy crystal-clear audio with plenty of volume.
Experience the DS18 difference with DS18’s NXL-N4 Full-Range 4-Channel Marine Amplifier.

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Questions and Answers

Q1: What is the DS18 NXL-N4?

A1: It’s a 4-channel Class D marine-grade amplifier with waterproof IP67 protection, designed to deliver reliable, full-range power for outdoor audio systems.

Q2: How much power does it deliver?

A2: It delivers 100 W RMS per channel at 4 Ω, 150 W RMS per channel at 2 Ω, and can be bridged to 300 W per channel at 4 Ω.

Q3: Can it be used outdoors?

A3: Yes — the amplifier is IP67-rated, meaning it resists water and dust, making it suitable for marine, powersports, and other outdoor installations.

Q4: What speaker setups can it power?

A4: Its 4-channel design lets you power four speakers individually or bridge two channels for more power to subwoofers or larger drivers.

Q5: Does it have audio filters?

A5: Yes — the built-in selectable crossover (HPF/LPF/FULL) lets you tailor audio for speakers, subs, or full-range setups.


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