DS18 GFX-8K1 PRO Full-Range Class D 1-Channel Monoblock Amplifier 8000 Watts Rms 1-Ohm
Key features
- Amplifier channels: 1
- RMS output at 4 ohms: 3500.0 W
- RMS output at 2 ohms: 5000 W
- RMS output at 1 ohm: 8000 W
DS18 GFX-8K1 PRO Full-Range Class D 1-Channel Monoblock Amplifier 8000 Watts Rms 1-Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Drive a demanding subwoofer setup with the DS18 GFX-8K1, a full-range Class D monoblock amplifier rated at 8000W RMS at 1 ohm. Its full-bridge design and single-channel output are built for high-power car audio systems, while adjustable filters and bass boost let you shape the signal for your setup.
Key Features & Benefits
- High-power monoblock output: The 1-channel design delivers substantial power to a compatible subwoofer system.
- Full-range response: A 15 Hz–20 kHz response offers flexibility for systems using appropriate drivers.
- Adjustable filters and bass boost: Set crossover ranges and bass emphasis to suit your audio system.
- Cooling and protection: The heavy-duty heatsink, intelligent cooling system, and listed protection features support demanding operation.
- Included level control: Adjust the level from the included knob without reaching the amplifier.
- Heavy-duty connections: The 1/0 GA power input and 8 GA speaker output accommodate the specified connection sizes.
Technical Specifications
| Specification | Details |
|---|---|
| Model | GFX-8K1 |
| Amplifier type | Full-Range Class D, 1-channel monoblock; full-bridge design |
| RMS power @ 1 Ohm (14.4V) | 8000W |
| Power @ 4 Ohm, 14.4V | 3500W |
| Power @ 2 Ohm, 14.4V | 5000W |
| Power @ 1 Ohm, 14.4V | 8000W |
| Speaker impedance range | 1–4 Ohm |
| Frequency response | 15 Hz–20 kHz |
| Low-pass filter | 50 Hz–20 kHz |
| High-pass filter | 15 Hz–2 kHz |
| Bass boost | 0–12 dB |
| Bass frequency | 35 Hz–70 Hz |
| Low-level input | 0.5V–8V |
| High-level input | Not present |
| Protection | Clipping, Thermal, Overload, Impedance, Short-Circuit, and Voltage Failures |
| Operating voltage | 9–15V |
| Fuse rating | 800A |
| Power input size | 1/0 GA |
| Speaker output size | 8 GA |
| Dimensions | 15.35" x 9.29" x 2.83" |
| Subsonic frequency | N/A |
| Build features | Heavy-duty heatsink and intelligent cooling system |
| Level control | Level control knob included |
Why Choose This Product?
The GFX-8K1 gives you three power ratings at 14.4V across 4-, 2-, and 1-ohm loads, helping you compare its output with your subwoofer system’s impedance. Its adjustable low-pass and high-pass filters, plus bass boost, provide options for shaping the signal to your system rather than relying on a fixed crossover setting.
Installation & Compatibility Notes
Match the amplifier to a speaker load within its 1–4 Ohm range. The signal input is low-level only, so plan for an RCA-level signal from a head unit or processor; high-level input is not present. Check that your installation can accommodate the 15.35" x 9.29" x 2.83" chassis and the specified 1/0 GA power input and 8 GA speaker output. The listed operating voltage is 9–15V, and the fuse rating is 800A.
Frequently Asked Questions
How much power does the GFX-8K1 produce?
At 14.4V, its listed output is 3500W at 4 Ohm, 5000W at 2 Ohm, and 8000W at 1 Ohm.
Does this amplifier accept a high-level speaker signal?
No. It has a low-level input rated 0.5V–8V and no high-level input.
Can I adjust the crossover and bass response?
Yes. It has adjustable low-pass and high-pass filters, 0–12 dB bass boost, and a bass frequency range of 35 Hz–70 Hz.
Does it have a subsonic filter?
No dedicated subsonic frequency is listed for this model.
What should I check before choosing a mounting location?
Allow for the amplifier’s 15.35" x 9.29" x 2.83" dimensions and plan the installation around its specified connections and operating voltage.
Explore More
Shop the DS18 GFX-8K1 at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.






