EXL 1-Channel Class D Amplifier 4000 Watts Rms @ 1-Ohm Made In Korea
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
DS18 EXL-P4000X1D – 1 Channel Class D Car Amplifier – RMS Power @ 1 Ohm 4000W x 1CH – Made in Korea
From Korea with Love
Designed entirely from the ground up with amazing sound and power in mind, the DS18 EXL-P4000X1D is the smartest choice you can make if you want to provide your audio system with pure and uninterrupted power. That’s because the optimized Korean circuitry is made with the highest made premium components, which produces massive power levels for your subwoofers. The sleek design is also made with a strong heatsink casing and thermal protection circuitry that maintains amp temperature well below its limits to give you extended longevity and higher efficiency. Boasting power and reliability, you can’t go wrong with this amplifier that’s made with Korean passion and expertise!
Order the DS18 EXL-P4000X1D today to give your audio system a massive power boost!
Find The Perfect Frequency Effortlessly
A bass knob and precise filters are included with the amplifier to help you fine tune the signal effortlessly. This allows you to produce the best quality sound while also monitoring your signal and amplifier status with the power and clipping indicator––ideal if you want to adjust your audio system as you drive!
Product Highlights
- Rated at 4000 watts RMS at 1-Ohm, 2600 watts RMS at 2-Ohms, 1600 watts RMS at 4-Ohms.
- Made with premium Korean components and optimized circuitry to provide massive power levels at maximum efficiency, giving louder and deeper bass.
- Precise filters help you easily adjust to your desired frequencies or box tuning. Low Pass filter: 35HZ-250HZ / Infrasonic filter: 10HZ-30HZ / 0–180-degree phase selector / Bass boost: 0-9 dB.
- The included Bass knob lets you adjust your bass as you drive, which also includes a power and clipping indicator so you can monitor your signal and amplifier status.
- Includes a wide voltage operational range of 9-15.5 volts with gain sensitivity adjustable from 200mv to 6v through the high-quality tiffany RCA jacks.
- Built in Clipping, Power, and Protect indicators so you can monitor your amp through all conditions.
- Large power and ground 1/0 AWG inputs with 8 AWG speaker input terminals. We recommend a 450A inline fuse for this amplifier for optimal operation.




Technical Details
| RMS Power @ 4 Ohm | 1600W x 1CH |
| RMS Power @ 2 Ohm | 2600W x 1CH |
| RMS Power @ 1 Ohm | 4000W x 1CH |
| Frequency Response | 15Hz-250Hz |
| Signal/Noise Ratio | >98dB |
| Efficiency@4 0hm | >87% |
| Damping Factor | 200 |
| THD % | <0.02% |
| Low Level Input Range | 200MV-6V |
| Selectable X-Over | LPF Fixed |
| X-Over Filter Range | 35Hz - 250Hz |
| Bass Boost Range | 0-+9dB |
| Bass Boost Frequency | 30Hz - 60Hz |
| Infrasonic Filter | 10Hz - 30Hz |
| Phase Selector | 0-180 |
| Class | D (Digital) |
| Amplifier Type | Monoblock Subwoofer |
| Channels | 1CH |
| Minimum Impedance | 1 Ohm |
| Led Indicator | PWR / CLIP / PROTECT |
| Power Input Size | 0 AWG |
| Fuse Rating | 450A |
| Remote Level Control | Yes - Dash Mount |
| Cooling Fan | No |
| Thermal Protection | Yes >75°C / 167°F |
| Over-Load Protection | Yes |
| Dc Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes >15.5V |
| Clipping Protection | Yes |
| Body Color / Finish | Black Aluminum |
| Dimensions LxWxH (Inches)(mm) | 17.4 x 8.77 x 2.67” / 442 x 223 x 68 mm |
| Heatsink Length | 15.75" / 400 mm |
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.