SKU: 34365562306

NXL 4-Channel Full-Range Class D IP67 Marine and Powersports Amplifier 4 x 200 Watts Rms @ 4-Ohm

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Description

NXL 4-Channel Full-Range Class D IP67 Marine and Powersports Amplifier 4 x 200 Watts Rms @ 4-OhmDS18 HYDRO NXL X850. 4D 4 Channel Marine Waterproof Amplifier Class D Full Range 200 x 4 RMS @ 4 Ohm 2400 Watts Peak DS18 designed the NXL X850. 4D for customers looking for a compact and waterproof amplifier with exceptional power output and prioritizes boosting sound. The NXL series impressive power output is supplemented by its outstanding efficiency, and its durability in harsh conditions makes it a favorite among customers in need of a waterproof

DS18 HYDRO NXL-X850.4D 4-Channel Marine Waterproof Amplifier 
Class D Full-Range 200 x 4 RMS @ 4 Ohm 2400 Watts Peak

DS18 designed the NXL-X850.4D for customers looking for a compact and waterproof amplifier with exceptional power output and prioritizes boosting sound.

The NXL series impressive power output is supplemented by its outstanding efficiency, and its durability in harsh conditions makes it a favorite among customers in need of a waterproof amplifier to be the powerhouse of their system.

The high pass and low pass filters will help you tune your speaker choice accurately so you can obtain crystal clarity from low volume levels all the way to maximum for the ultimate audio experience.

All NXL units have stable and reliable 4-layer PCB layouts, IP67waterproof rating for power sports, has an ultra-compact size for easy installation, and has audio precision quality control verification.

The NXL Marine Amplifier series is perfect for outdoor enthusiasts looking for a durable, waterproof amplifier with intense power for their marine vehicle's audio system. This series is best used in various rugged and wet environments, such as on trails or at the lake.

Highlights

  • The included a marine grade fuse and fuse holder that is connected inline with your main power wire will help with ultimate protection against the elements.
  • IP67 Waterproof Rating
  • UV, Salt and Fog Protection
  • Direct Power Harness Design with Marine Grade OFC Tinned Wires
  • Latest Digital Amplifier Design With SMC Technology
  • Maximum output of 600W x 2CH bridged at 4-Ohms, 200W x 4CH at 4-Ohms, and 300W x 4CH at 2-Ohms

Great For

  • Marine
  • Off Road
  • DIY Projects

Technical Details 
             Download NXL-X850.4D Product Manual
Specifications 
POWER  
Total Watts (Peak) 2400W
RMS Power @ 4 ohm 4 x 200W
RMS Power @ 2 ohm 4 x 300W
RMS Power @ 1 ohm  -
RMS Power @ 4 ohm Bridge 2 x 600W
AUDIO  
Frequency Response 10Hz-20KHz
Signal to Noise Ratio 1W@4Ω > 83dB
Efficiency @ 4ohm 0.83
Input Impedance 20KΩ
Channel Separation 60dB
Total Harmonic Distortion (THD) < 0.04%
Low Level Input Range 200mV-5V
Selectable X-Over Yes (HPF/Full/LPF)
X-Over Filter Range 40Hz-2KHz
Bass Boost Range N/A
Bass Boost Frequency N/A
Infrasonic Filter No
Phase Selector No
FEATURES  
Amplifier Class Digital
Amplifier Type Stereo Full Range
Number of Channels 4
Minimum Impedance 2 Ohms (Stereo) / 4 Ohm (Bridge)
Led Indicators Power / Protection / Clip
Power Input Size 8GA Tinned OFC
Fuse Size 2 x 50A (100A) 
Thermal Protection Yes (78°C)
Over-Load Protection Yes
Short Circuit Output Protection Yes
Voltage Input Protection Yes (7-16V)
Body Color / Finish Black Brushed Aluminum
MEASUREMENT  
Overall Length 11.8" / 301mm
Overall Wide 4.4" / 112mm
Overall Height 1.77" / 45mm
Heatsink Length 10.2" / 261mm
Gross Single Unit Weight 2.4kg




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: 34365562306

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4.3 ★★★★★
Based on 13 reviews
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A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 4
Lovely dress. Good quality but squashes my boobs
Size: Small, Color: Navy Polka Dot
Size chart is accurate but if you have a large bust consider sizing up, the bust area doesn’t have much room so expect lots of cleavage if you have a large chest. It kind of squashed my boobs and doesn’t provide the best support. This is best for smaller chests. The quality is nice and it washes well. This can be worn with flats on a casual day or dresses up with some heels. This dress is lined and not see through.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
H
Verified Purchase
Hilary Alexander
Fort Morgan, US
★★★★★ 5
Great dress
Size: X-Large, Color: Crimson, Size: X-Large, Color: Crimson
Perfect dress for many different occasions
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
K
Verified Purchase
Kate, NYC
Fort Morgan, US
★★★★★ 5
My favorite this summer
Size: 9, Color: Red Leather, Size: 9, Color: Red Leather
These are very nice. I like this type of sandal with the "thong" feature while also having my foot gently hugged. These did not require much breaking in, seemed pretty comfortable from the first wear. I wore them to a high-end rooftop restaurant with a chiffon and silk maxi dress, and it worked really well, got compliments and all, though I have no good shots from there with these sandals visible. The red color definitely makes them pop, especially with black elements of the outfit. I also got them in black here, and in white from another store. Their shape is delicate, yet sharp and stylish, and they seem to be well-made. When I got these shoes, I took them to my artistic shoe repair guy, to promptly put protective layer on the front bottom of the soles. That way, it always looks like new, no scratched sole. That costs a bit, but worth it for me. I might buy a pair or two in some other colors, later. I am 5'10" tall, clothes size M, shoes - 9, 150lb. These shoes feel true to size.
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Reviewed in the United States on June 19, 2025
M
Verified Purchase
michelle
Chelsea, US
★★★★★ 5
Size up! Super comfortable!
Size: 10, Color: Black Leather
Super comfortable, can walk al night in them. I size up in anything steve madden. I’m usually a 9, but a 9.5 in steve madden fits almost exact so I get a size 10 in any of their shoes. Sizing is consistent throughout styles but I def need to size up. If you’re in between sizes, I suggest a whole size up. Unless you like an exact fit, personally I think an exact fit looks off any slight movement of your foot and the shoe looks like it doesn’t fit. I would say they’re pricey but they’re def a classy and comfortable pair of heels!
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Reviewed in the United States on July 18, 2025
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Verified Purchase
valeria
Battle Creek, US
★★★★★ 4
Good
Size: 7, Color: Black Leather
Cute , you’ll need to break them in. If you have wide feet theses probably aren’t for you Over all as shown , true to size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025

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