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Free standard shipping on select products
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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
Great For





| 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 |
Please allow 3–7 business days for shipping. We only ship to the lower 48 states.
On some items, our live inventory may be depleted from previous days’ sales. In these cases, we may drop ship the item once it becomes available. If inventory is not in stock at the time of fulfillment, ATU will notify you with a resolution regarding backorder status.
Please be advised that ATU ships from over 10 warehouses across the U.S. In some cases, items may be drop shipped to help speed up delivery times. On heavily discounted parts (i.e. differentials), tracking information may not be provided.
Our site is always available whenever you want to upgrade your ride. Orders can be placed 24/7/365.
Our passionate customer support team is happy to help with any questions or concerns.
Email: orders@allthingzutv.com
Phone: 256-686-4888
For returns, please use the link at the top of this page to access our return form. Download, print, and fill out the form completely, then ship it in the same box as the product you are returning.
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