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DS18

DS18 G4000.5D GEN-X Full-Range Class D 5-Channel Amplifier 4000 Watts Max Power 2/4 Ohm Stable, Bridgeable, High/Low Pass Filter - BASS Knob Included - Compact Amp for Speakers in Car Audio System

  • Based on 46 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 20 – Oct 21
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Style: 4000 Watts 5-Channel


Features

  • HUGE POWER IN A SMALL PACKAGE - 4000 Watts gives you all the power you need tucked away and out of sight, keeping your vehicle looking clean and neat. 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
  • WIDE RANGE OF APPLICATIONS - Ranging from 1-4 ohms, this amplifier will allow you to use a variety of speakers for your specific application. Never again will you need to worry about having the right amp for the job
  • BASS KNOB INCLUDED - The G4000.5D amplifier comes with a remote bass knob included. Always have control over the bass levels depending on what genre music you're listening to
  • COMPACT MINI DESIGN - When we say compact we mean it. This powerhouse Amp is only 12.8'" x 4.72" x 1.96". With those dimensions, you can put this just about anywhere!
  • MAXIMUM PERFORMANCE - Get superior sound quality with our new redesigned and renowned G4000.5D - Build to surpass the expectations of the competitors and enthusiasts in our community looking to complete the system of their dreams

Description

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

Manufacturer: DS18


Mounting Type: Freestanding


Brand: DS18


Number of Channels: 5


Specification Met: Ds18 Standards


Mounting Type: Freestanding


Number of Channels: 5


Maximum Output Power: 4000 watts


Specification Met: Ds18 Standards


Manufacturer: DS18


Model: G4000.5D


Brand Name: DS18


Number of Items: 1


Warranty Description: 1 Year Limited Manufacturer Warranty


UPC: 810097261754


Number of Packs: 1


Included Components: Amplifier


Part Number: G4000.5D


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 20 – Oct 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Steady power
Style: 4000 Watts 5-Channel
Currently running 100wrms on my front stage and 120wrms in the rear doors with 2 10in 300wrms JL 0V3s in the trunk on the 5th channel. No hiccups at all. I can confirm 600wrms at 2ohm steady. This old man is happy. I would certainly recommend.
Reviewed in the United States on May 23, 2026 by Ms.Karla
    • Solid
Style: 4000 Watts 5-Channel
Solid 5 channel amp! Perfect amount of power for adding a simple system to a car. It has bells and whistles, like clip light, sub gain knob with clip indicator, and infrasonic filter. The size is a perfect small footprint. This it the best dollar per watt performance, per size. Only con: Considering the power, I was wondering why it didn’t have 1/0 gauge power and ground. ... show more
Reviewed in the United States on August 20, 2024 by Veilstrike
    • The best
Style: 4000 Watts 5-Channel
Unsurpassed, price. And unparalleled quality. Ch
Reviewed in the United States on March 27, 2025 by Christian Velasquez
    • Works great
Style: 4000 Watts 5-Channel
Sounds great! I did a lot of research and I bought this amp with the intention of see what happens but this thing blew my mind great amp.
Reviewed in the United States on December 3, 2023 by eric martin
    • Nice amp
Style: 4000 Watts 5-Channel
Nice and compact. Powered 8 speakers, sounds great
Reviewed in the United States on September 13, 2024 by shawn parr
    • almost but not quiet
Style: 4000 Watts 5-Channel
G4000.5D It will do 4 channels but with 5 channels not enough punch for good base.
Reviewed in the United States on July 1, 2026 by Andwele Hall
    • Teeny, tiny, powerful.
Style: 4000 Watts 5-Channel
I have an old RF 25 to Life Power1000 that has a mostly similar output to this amp, however the G4000.5D is a quarter of the size, if not smaller. It's amazing how much power this tiny class D amp puts out. It may be tiny, but it is quite hefty and I love the understated matte black look. Running this with a pair of JL 10W6v2-D4 at 1 ohm and a quartet of BA speakers yielded amazing results. Very full sound from the components, subs hit hard and super easy install. The amp does get hot when pushed, but that should be expected as DS18 has packed a lot into a small space. I would have liked to have seen some larger terminals used for power and ground, but 4awg is mostly fine. This is the first amp I've installed with terminal attached RCAs and I didn't think I would like them, but it actually made the install a bit easier, so go figure. Overall, this is a solid and powerful amp. And it is small enough to install just about anywhere which makes it incredibly versatile. ... show more
Reviewed in the United States on November 27, 2023 by Edgar Allan
    • Big power, tons of versatility and quality sound output wrapped in a tiny package
Style: 4000 Watts 5-Channel
DS18 has done a great job with this G4000.5 Gen-X amplifier. I've been shopping around for something to push the door speakers in my 2016 silverado after adding two sundown 12" subs under the rear seat. To test this I put this amplifier under the front center seat and re-routed the speaker wires under the carpet along with everything else. Super simple to set up if you are at least familiar with amplifiers and the 4 gauge inputs make it a lot easier to route than 0 or anything larger. First start up was a very noticeable change in the output of even the stock speakers and after some tweaking of the lowpass/subsonic filters this thing came to life. I cant really crank it up too much but on the lower power settings it is really impressive. I cant wait to add in some good quality tweeters, 6x9's and 6.5" mids and hear this thing really bump. Definitely recommend and cant wait to see what others can do with this thing ... show more
Reviewed in the United States on November 2, 2023 by Chance

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