SKU: 51786811756

NXL 4-Channel Full-Range Class D IP55 Marine Amplifier | 4 x 150W RMS @ 4-Ohm

Sale price$215.97 Regular price$239.97
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Description

NXL 4-Channel Full-Range Class D IP55 Marine Amplifier | 4 x 150W RMS @ 4-OhmDS18 NXL M4 Full Range 4 Channel IP55 Marine Grade Amplifier 4 X 150 Watts @ 4 Ohm Designed for intense sessions that keep the party boat rocking; the NXL M4 is DS18s newest high quality, powerful amplifier for the marine or powersport enthusiast looking for big sound with a small footprint! As a Class D Digital amplifier, the NXL M4 uses direct insert speaker and power terminals significantly smaller than your average amplifier, making it the perfect

DS18 NXL-M4 Full Range 4-Channel IP55 Marine Grade Amplifier 4 X 150 Watts @ 4 Ohm

Designed for intense sessions that keep the party boat rocking; the NXL-M4 is DS18’s newest high-quality, powerful amplifier for the marine or powersport enthusiast looking for big sound with a small footprint!

As a Class D Digital amplifier, the NXL-M4 uses direct insert speaker and power terminals significantly smaller than your average amplifier, making it the perfect size for any vehicle’s custom build: but, what it lacks in size it makes up for in power.

The NXL-M4 handles 150W x 4CH @ 4 Ohms; 230W x 4CH @ 2 Ohms; and 440W x 2CH @ 4 Ohms Bridge of RMS Power and 1800W Peak Power.

Get clean, well defined sound for with enough features (Fully Variable Bass Boost, Low Pass Filter, and High Pass Filter) to tune your music perfectly for optimal audio enjoyment! This full range amplifier handles all speakers insanely well and has the features to make sure they play the way you want them to!

This amplifier is tough enough to stand up to the worst the waves throw at you! All controls are guarded by high strength front covers that guarantee impenetrable defense against the elements; coated 4 layer PCB helps prevent corrosion caused by salt water; and Voltage, Thermal, and Short Circuit Protection for easy monitoring of your power levels.

Order the NXL-M4 for insane power out on the water!

Highlights

  • Hardware resistant to corrosion and UV Protection
  • Coated 4 Layers PCB to prevent corrosion
  • IP55 Water Resistance Grade
  • High Level Input For Easy Factory Integration
  • Front cover to keep the controls safe to the elements
  • LED Clip Indicator to easier adjustment
  • Stable and Reliable Class D Circuit Design
  • Sound Quality Verification Using AP Instruments
  • Direct Insert Power and Speaker Terminals
  • Short Circuit, Thermal, and Voltage Protection
  • 4 channel input / 2 channel output

Great For

  • Marine Audio
  • Jeep Audio
  • ATV Audio
  • Powersports Audio

Technical Details 
SPECIFICATIONS
POWER  
Total Watts (Peak) 1800W
RMS Power @ 4 ohm 4 x 150W
RMS Power @ 2 ohm 4 x 230W
RMS Power @ 4 ohm Bridge 2 x 440W
AUDIO  
Frequency Response 20Hz - 20KHz
Signal to Noise Ratio >90dB
Efficiency @ 4ohm >97%
Channel Separation >55dB
Total Harmonic Distortion (THD) <0.15%
Low Level Input Range 0.2V-6V
High Level Input Yes: ≥5V
Selectable X-Over HPF/LPF/FULL
X-Over Filter Range 40Hz - 2KHz
Bass Boost Range 0-12dB
Bass Boost Frequency 45Hz ±5Hz
Phase Selector No
FEATURES  
Amplifier Class Digital (D)
Amplifier Type Stereo Full Range
Number of Channels 4 Channels
Minimum Impedance 2 ohm (Stereo) / 4 ohm (Bridge)
Led Indicator Clipping / Protect / Power
Power Input Terminal Size 4 Ga
Fuse Size 70A (2x35A)
Thermal Protection Yes
Over-Load Protection Yes
DC Output Protection Yes
Short Circuit Output Protection Yes
Voltage Input Protection Yes
Clipping Protection  Yes
Body Color / Finish Gray+White / Aluminum+ABS
Extra Features  
Water Resistant Rated Yes, IP55 (Water Splashing)
PCB Layout Design 4 Layers / Coated
RCA Output Yes, 2 CH (Left / Right)
UV Compliant Yes, UV Protected and PCB Coated
Input Sum Selector Yes, 2Ch or 4Ch Input Mode
Tiffany Style RCA Yes
High Level Input Yes, 4ch Speaker level
Stainless Steel Hardware Yes, (Screws)
Potenciometers  High Quality Metal Knob 
Remote Level Control No
Measurement  
Overall Length 9.6" / 245mm
Overall Wide 4.5" / 116mm
Overall Height 1.7" / 43mm
Heatsink Length  8.6" / 220mm



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51786811756

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4.1 ★★★★★
Based on 16 reviews
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Molly Farrell
West Palm Beach, US
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
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Verified Purchase
Layton Phillips
Charlottesville, US
★★★★★ 5
Great pillow, but the cooling effect depends on the cover
Color: Blue-ice Plus, Size: King(Pack of 2)
I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation. However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through. That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone. Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
H
Verified Purchase
Hannah N. Ford
Battle Creek, US
★★★★★ 5
Cooling and holds shape.
Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
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Reviewed in the United States on April 28, 2026
S
Verified Purchase
smmt
Alexandria, US
★★★★★ 5
Best Pillow Ever
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Best pillow ever. Although it still gets "hot", it does take longer to get "hot". I love this pillow. I was buying a new pillow almost every 3 months. Other pillows would either remain rock hard or go flat. I was concerned at first when reading the description as I though the memory foam would be big pieces. They are soft fluffy pieces. I had to remove almost half of the foam to get the pillow to what works for me. I have not had to put any filler back in. Maybe in a couple of more months I may have to put a bit more in, but it is holding it's shape and not going flat. I do fluff it every night. This helps. I am a stomach sleeper. I have bought the expensive purple pillow and hated it so much I gave it to my daughter. This QUTOOL Pillow is the best! I bought a 2 pack. Have not used the other pillow yet, but I feel I may actually go years for once without having to buy a pillow as I have the 2nd one set aside if the first one gets to a point in need replacement. I have bought Dollar Store pillows. I have bought $300 pillows. None of them even come close to this pillow and the way you can adjust this pillow for you. The pillows came in a white mesh like bag. I keep all the unused "stuffing" in this bag. I have it hanging in my closet and I just fluff the bag once a month to keep the filling fresh so it is ready if and when I need it. Coming from someone who has trouble staying asleep, neck issues, a stomach sleeper who hate those flat pillows manufacturers think stomach sleepers like but actually hate, buy this pillow. Just buy it. Best Pillow for a picky person like me. Buy 2 or more so if you have to stay at a hotel, you can take your own pillow.
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Reviewed in the United States on June 15, 2025
J
Verified Purchase
Jedata
Whiting, US
★★★★★ 4
Slippery Pillow
Color: Blue-ice Plus, Size: Queen(Pack of 2)
Nice and cooling but it’s so slick my pillow sheet doesn’t want to stay on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

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