Free Shipping On Orders of $100 or More!

Car Audio
DS18
$36.00 off

DS18 GFX-8K1 PRO Full-Range Class D 1-Channel Monoblock Amplifier 8000 Watts Rms 1-Ohm

Sale price $563.99 Regular price $599.99
Shipping calculated at checkout.


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


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.