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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
| 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:
- 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
4.6 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
beautiful and high-quality jewelry box
Amazing jewelry box of good quality. color - exactly as in the photo (mine is olive). High-quality interior decoration. Everything as in the seller's photo. Highly recommend.
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Reviewed in the United States on May 1, 2025
★★★★★ 5
Functional gift.
Used as an engraving project with our laser printer. Worked well, would make a great gift for bridesmaids etc.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Small But Mighty — The Best Travel Jewelry Case I’ve Ever Used
Color: Glitter White
This Hatori travel jewelry box is honestly the best little jewelry organizer I’ve ever owned. I don’t know how it works its magic, but it somehow fits so much jewelry and still looks tiny and compact. Go figure.
Size & Portability:
It’s the perfect size—small enough to toss into a suitcase, carry-on, or even a purse, but big enough to hold everything I need for a trip. Lightweight, sturdy, and it takes up almost no space.
Storage Layout:
The double-layer design is genius.
Bottom: 7 ring rolls + 3 removable compartments (I love that I can move them around depending on what I’m packing).
Top: 5 hooks and an elastic pocket to keep necklaces from tangling—YES, it actually works.
Everything stays in place, nothing gets tangled, and it looks beautifully organized when you open it. A travel miracle.
Quality:
The glittery white PU leather exterior is sturdy and cute, and the interior is lined with soft velvet that protects everything. The clasp is easy to use and feels secure—no accidental openings in your suitcase.
Why I Love It:
It’s compact, durable, organized, and honestly just adorable. Perfect for travel, but also great for keeping your everyday jewelry together in a drawer.
If you travel at all—or just like your jewelry organized—this little box is worth every penny. It packs a punch for its size.
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Reviewed in the United States on November 27, 2025
★★★★★ 5
Great box for traveling or your safe!
Color: Black
The Travel Jewelry Box is a must-have accessory for anyone who loves to accessorize on the go. This compact yet versatile organizer is the perfect solution for keeping your favorite jewelry safe, secure, and tangle-free while you travel.
Let's start with the design. The Travel Jewelry Box is intelligently crafted to maximize space without sacrificing functionality. Despite its compact size, it features multiple compartments, pockets, and hooks to accommodate a variety of jewelry pieces. From earrings and rings to necklaces and bracelets, there's a dedicated spot for everything, ensuring that your jewelry stays organized and protected during transit.
Durability is another standout feature of this jewelry box. Constructed from high-quality materials like faux leather or sturdy fabric, it's built to withstand the wear and tear of travel. The exterior provides a layer of protection against bumps and scratches, while the interior is lined with soft velvet or plush fabric to prevent your jewelry from getting damaged.
One of the things I love most about the Travel Jewelry Box is its versatility. Whether you're jet-setting across the globe or simply heading out for a weekend getaway, this compact organizer is the perfect companion. It easily fits into your carry-on luggage, purse, or backpack, ensuring that your precious jewelry is always within reach. And with its sleek and stylish design, it adds a touch of elegance to your travel ensemble.
But perhaps the best part about the Travel Jewelry Box is its practicality. It's designed with the traveler in mind, featuring thoughtful details like a secure zipper closure, removable compartments, and a compact size that fits easily into any travel bag. No more digging through tangled necklaces or searching for lost earrings – with this jewelry box, everything has its place, making it easy to find and access your favorite pieces whenever you need them.
In conclusion, the Travel Jewelry Box is a game-changer for anyone who wants to travel in style without sacrificing the safety and organization of their jewelry. With its smart design, durability, versatility, and practicality, it's a must-have accessory for jet-setters, weekend warriors, and anyone in between. Trust me, once you experience the convenience of the Travel Jewelry Box, you'll wonder how you ever traveled without it!
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Reviewed in the United States on May 29, 2024
★★★★★ 4
Great travel jewelry case
Color: Black
Great colors. Good size. Easy to pack and carry. Fits a good amount of jewelry. It’s decent quality. I know there is better out there but for the value it’s great. It snaps close and I haven’t had mine accidentally come open at all. The inside is soft. My necklaces did get a little tangled inside but not too bad. I could have put them in there better. Very nice though.
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Reviewed in the United States on January 21, 2025
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