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Description
GEN-X Full-Range Class D 4-Channel Amplifier | 4 x 150W RMS @ 4-OhmDS18 G1800. 4D Full Range Class D 4 Channel Car Audio Amplifier 1800 Watts The Gen X series has always been a DS18 staple with the public and been in countless system builds over the many years it was released. We have completely redesigned the GEN X series from the ground up to meet and audio enthusiasts high standards and complete their goals for the system of their dreams with great power, reliability, and efficiency. The G1800. 4D has a power
DS18 G1800.4D Full-Range Class D 4-Channel Car Audio Amplifier 1800 Watts
The Gen-X series has always been a DS18 staple with the public and been in countless system builds over the many years it was released.
We have completely redesigned the GEN-X series from the ground up to meet and audio enthusiasts high standards and complete their goals for the system of their dreams with great power, reliability, and efficiency.
The G1800.4D has a power rating of 4 x 150 watts RMS at 4 ohms 4 x 230 watts RMS at 2 ohms, 2 x 430 watts at 4 ohm bridge, and 1800 watts MAX at the ohm load it was designed for, giving you pure and clean power on demand.
This amp has the power to drive your speakers but also not take up much space because of the new compact design and technology that will keep your amp playing cool and loud.
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.
Key Features
- Digital Class D 4 Channel Amplifier
- MAX Wattage: 1800w Peak
- RMS Wattage: 2 x 430 Watts RMS @ 4 ohm bridge, 4 x 230 Watts RMS @ 2 ohms, 4 x 150 Watts RMS @ 4 ohms
- Frequency Response: 20-20KHz
- Signal to Noise Ratio: >90dB
- Efficiency at 4 ohms: 81%
- Total Harmonic Distortion: 0.01%
- Input Range: .25-6v
- Selectable X-over: LPF, HPF. Flat
- Phase: 0-180
- Power and Ground Terminal: 4 GA
- Minimum Impedance: 2 ohm
Great For:
- Car Audio
- Pro Audio
- Motorcycles
- Hi-Fi installation
- Off-Road
- DIY Projects
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 430W |
| AUDIO | |
| Frequency Response | 20Hz-20KHz |
| Signal to Noise Ratio | >90dB |
| Efficiency @ 4ohm | 81% |
| Damping Factor | 78 |
| Input Impedance | 22K |
| Channel Separation | 70dB |
| Total Harmonic Distortion (THD) | 0.01% |
| Low Level Input Range | 0.25-6V |
| High Level Input | NO |
| Selectable X-Over | LPF/FLAT/HPF |
| X-Over Filter Range | 50Hz-250Hz |
| Bass Boost Range | N/A |
| Bass Boost Frequency | N/A |
| Infrasonic Filter | N/A |
| Phase Selector | NO |
| FEATURES | |
| Amplifier Class | Digital (D) |
| Amplifier Type | 4CH Full Range |
| Number of Channels | 4CH |
| Minimum Impedance | 2 ohm St / 4 ohm Bridge |
| Led Indicator | Power / Protection / Clip |
| Power Input Terminal Size | 4 ga |
| Fuse Size | 2 X 40A |
| Remote Level Control | NO |
| 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 | 10.43" / 265mm |
| Overall Wide | 4.72" / 120mm |
| Overall Height | 1.96" / 50mm |
| Heatsink Length | 8.58" / 218mm |
| Gross Single Unit Weight | 1.6KG |
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
4.7 ★★★★★
Based on 267 reviews
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Product Reviews
★★★★★ 5
Nice shirt, could be more "slim fit" in LG size...
Fit Type: Slim Fit, Color: White, Size: X-Large
This is a very nice shirt, good quality, reasonable cost. I am 6'-3", 190 lbs. ,33" waist, 44 chest, a slim (not so young anymore) athletic build:)
The Medium size was a good chest & waist fit for a slim fit look, but the arms were too short. I had to go with a Large size for the sleeve length. With the Large size, the chest is good, but the waist is a too loose for me to be a "slim fit". I am keeping the shirt anyway, it's very comfortable with soft & thick material.
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Reviewed in the United States on June 6, 2023
★★★★★ 5
Worked well first try
Fit Type: Slim Fit, Color: Grey, Size: X-Large
Very nice. Satisfied
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Reviewed in the United States on May 18, 2026
★★★★★ 4
Great price with good quality - Just be prepared to iron it.
Fit Type: Slim Fit, Color: Grey, Size: X-Large
Nice shirt, especially for the price. You will need to iron it to get the wrinkles out, as I have a professional steamer, and it still looks unfinished even when using it.
If you iron and starch it, it will look very nice, and it does not wrinkle as badly as I thought it would.
The fit is perfect, and the softness, color, and feel are nice as well. This shirt can go from casual to dress right out of the closet (ironed, of course).
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Reviewed in the United States on January 21, 2026
★★★★★ 5
Nice long sleeve Oxford shirt
Fit Type: Slim Fit, Color: White, Size: Medium
Exactly what I expected plus fast delivery. Amazon essentials offer great value for the price.
Note: I wish #Amazon would give points for reviewing items as an incentive just as #AliExpress does.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Count on shrinkage when choosing your size.
Fit Type: Slim Fit, Color: White, Size: X-Large
I bought this shirt earlier and got an XL. It came and it fit perfectly. Couldn't believe it, but then I wondered what it would look like after one washing. It shrank. Not so bad that I couldn't wear it, but it no longer looked "perfect" and I I don't dare put on 5 pounds. But I liked the shirt overall, so I went back and ordered another, this time an XXL. It came, I tried it on and while it worked, it was slightly larger than I wanted. Instead of returning it, I washed it, and like the first, it shrunk, but it shrunk to a size that looked good and was comfortable. Lesson: you might want to go one size larger than you would ordinarily get, wear it to see how it fits, and if it seems too large, wash it and see if it makes a difference. The first shirt I would give 4 stars because shrinkage took away from it, but I'd give the second 5 stars because even more so after washing, the fit was very nice.
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Reviewed in the United States on April 23, 2025