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Description
GEN-X 5-Channel Class D Amplifier | 4 x 130W RMS @ 4-Ohm + 1 x 900W RMS @ 1-OhmDS18 G4000. 5D Full Range Class D 5 Channel Amplifier 4000 Watts DS18s GEN X Series has a successor, which we would love to introduce. This time, new options with the G series G4000. 5D: a car audio amplifier equipped with all the special benefits you expect from DS18s components! The experts at DS18 have redesigned the renowned GEN X series to surpass the expectations of the competitors and enthusiasts in our community looking to complete the system
DS18 G4000.5D Full-Range Class D 5-Channel Amplifier
4000 Watts
DS18’s GEN-X Series has a successor, which we would love to introduce. This time, new options with the G series G4000.5D: a car audio amplifier equipped with all the special benefits you expect from DS18’s components!
The experts at DS18 have redesigned the renowned GEN-X series to surpass the expectations of the competitors and enthusiasts in our community looking to complete the system of their dreams.
Our GEN-X Series amplifiers deliver massive amounts of power with unmatched reliability and efficiency so you can trust the heart of your system will never give out.
As a Class D amplifier, the GEN-X series uses power transformers 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 G4000.5D has a power output of 420W x 2 CH bridged at 4-ohms, 220W x 4 CH at 2-ohms, 130W x 4 CH at 4-ohms: perfect power settings to supercharge any custom build.
Order the G4000.5 to boost your car’s audio today!
Highlights
- Small and powerful design so you can power your subs with great efficiency and power without taking up much space
- Integrated low pass and high pass filter to help you get the perfect response you are looking for.
- High quality terminals that look great and will transfer your power and signal with no loss.
- Included remote knob and cable for fast and easy line attenuation.
- High level inputs for seamless factory integration.
Great For
- Car Audio
- Pro Audio
- Motorcycles
- Hi-Fi installation
- Off-Road
- DIY Projects
Technical Details
| SPECIFICATIONS | |
| POWER | |
| Total Watts (Peak) | 4000W |
| RMS Power @ 4 ohm | 4 x 130W / SUB: 300W |
| RMS Power @ 2 ohm | 4 x 220W / SUB: 600W |
| RMS Power @ 1 ohm | SUB: 900W |
| RMS Power @ 4 ohm Bridge | 2 x 420W |
| AUDIO | |
| Frequency Response | 20Hz-20Khz |
| Signal to Noise Ratio | >90dB |
| Efficiency @ 4ohm | 0.83 |
| Damping Factor | 78 |
| Input Impedance | 22K |
| Channel Separation | 55dB |
| Total Harmonic Distortion (THD) | 0.0001 |
| Low Level Input Range | 0.25-6V |
| High Level Input | No |
| Selectable X-Over | HPF/LPF |
| X-Over Filter Range | HPF:10-250Hz / LPF:50-250Hz |
| Bass Boost Range | 0-12dB |
| Bass Boost Frequency | Fixed @ 45Hz |
| Infrasonic Filter | 10-50Hz |
| Phase Selector | No |
| FEATURES | |
| Amplifier Class | Digital (D) |
| Amplifier Type | 5CH Full Range |
| Number of Channels | 5CH |
| Minimum Impedance | 2ohm St / 4ohm Bridge / 1ohm Sub |
| Led Indicator | Power / Protection / Clip |
| Power Input Terminal Size | 4ga |
| Fuse Size | 160A |
| Remote Level Control | Yes |
| Cooling Fan | No |
| Voltmeter | No |
| 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 | Matte black |
| MEASUREMENT | |
| Overall Length | 12.8" / 325mm |
| Overall Wide | 4.72" / 120mm |
| Overall Height | 1.96" / 50mm |
| Heatsink Length | 10.9" / 278mm |
| Gross Single Unit Weight | 2.2KG |
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
4.8 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
heavenly.
Color: White, Size: Queen (Pack of 2), Color: White, Size: Queen (Pack of 2)
UGH, i'm so obsessed with these pillows!! they're so comfortable, adjustable, AND perfect in general. they're so fluffy when you get them, but you can take out as much of the memory foam as you'd want. what i really like about these pillows is, the ability to unzip the pillow & wash when desired (please read the instructions!) 💫. i sleep a lottt better compared to my other pillows, i highly recommend to get you some of these 🙂↕️✨✨. i'm not sure about a "cooling effect" since i have a pillow case over them, but they stay a neutral temperature where it's comfortable. i'm definitely going to back soon to buy the body pillow and a case (or two!) to revive old pillows (which i also love!). they come in a pair, so it's HIGHLY worth it, get them rnnn!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Shocked
Color: White, Size: Queen (Pack of 2)
I'm really bougie when it comes to pillows. I've never spent less than $50 on a pillow. I'm a side sleeper and like firm support, but also want something soft. I almost ordered the really pricey pillows on Amazon, but was turned off by all the odor complaints. I needed something quick to at least hold me over until I could get exactly what I want, so I took a shot with this pillow with the plan of it being a temporary fix. However, this pillow turned out to be exactly what I was looking for. The first time I laid on it I was skeptical. It had support, but felt like it may have been too soft. It took a bit to get accustomed to, but by the second night I knew this is the pillow. No chemical odors, it's quality at a low cost. I figured this pillow would've been quickly replaced and put into the leg pillow rotation, but it is shockingly a really great pillow. It is not lumpy, stays way cooler than standard or shredded memory foam and is comfy. Hopefully it holds up for a long time. I've paid triple what these 2 pillows cost for a single pillow that isn't as good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
★★★★★ 5
Favorite pillows
Color: White, Size: Queen (Pack of 2)
These pillows are amazing! They are huge and plush but you can change that if you prefer. I really like that the outside cover can be washed and is also filled. It held up great in the washer and dryer. I just followed the directions on the tag. Great price for the quality and look very nice and fluffed on the bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 4
Good option
Color: White, Size: Body(Pack of 1)
I’ve been using the ACCURATEX Full Body Pillow for Adults – Hybrid Shredded Memory Foam for a few weeks now, and overall I’m really happy with it. The blend of shredded memory foam gives it a firm, supportive feel, but what I love most is that you can adjust the filling to get the exact firmness you want. Whether you prefer something more structured or slightly softer, it’s easy to customize by adding or removing foam.
Comfort-wise, it’s definitely a step up from standard body pillows. It keeps its shape throughout the night and offers great support for side sleeping. That said, it is a bit firmer out of the box than I expected, which is why I’m giving it 4 stars instead of 5.
If you’re looking for a body pillow that won’t go flat and lets you tweak the feel to your liking, this one is a solid choice.
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Favorite pillow!!
Color: White, Size: Body(Pack of 1)
I honestly wasn’t expecting to love this pillow as much as I do. Buying pillows online always feels risky because you can’t actually feel them beforehand, but this ended up being one of the best blind buys I’ve made on Amazon. The quality is genuinely shocking for the price. It feels way more expensive than it is. It’s insanely comfortable, supportive without feeling stiff, and just has that “perfect” cozy feel. I have neck problems, so I’m really picky about pillows, and this one somehow manages to be the perfect balance. It’s supportive without being stiff or overstuffed, but also not too flat where your neck feels unsupported. It has that perfect “sink in but still supportive” feel that’s hard to find. I loved the body pillow version so much that less than a week later I’m already ordering the regular pillow version too. Easily 5 stars from me!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
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