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DS18
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DS18 EXL-P4000X1D EXL Power 1-Channel Class D Amplifier 4000 x 1 @ 1-Ohm Watts Rms Made In Korea

Sale price $699.99 Regular price $749.99
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Key features

  • Amplifier channels: 1
  • RMS output at 4 ohms: 1600.0 W
  • RMS output at 2 ohms: 2600 W
  • RMS output at 1 ohm: 4000 W


Description

Product Overview

Bring 4000 watts RMS of 1-ohm power to a dedicated subwoofer setup with the DS18 EXL-P4000X1D EXL Power monoblock car amplifier. Its Class D design, Korean-built circuitry, and thermal protection are made for high-demand bass systems.

Key Features & Benefits

  • 4000W RMS at 1 ohm: Delivers the rated continuous power for a high-output subwoofer system.
  • Class D, single-channel design: Focuses the amplifier on subwoofer use with high efficiency and heat management.
  • Adjustable bass controls: Bass boost and infrasonic filtering let you shape the low-frequency signal.
  • Dash-mount remote level control: Adjust bass level from the cockpit while listening.
  • Built-in protection: Thermal, overload, DC output, short circuit, voltage input, and clipping protection address listed fault conditions.
  • Black aluminum enclosure: The chassis measures 17.4 x 8.77 x 2.67 inches for installation planning.

Technical Specifications

Brand / Model DS18 EXL-P4000X1D EXL Power
Channel / Class 1-Channel Monoblock Class D
RMS Power @ 1 Ohm 4000W x 1 CH
Minimum Impedance 1 Ohm
Frequency Response 15Hz–250Hz
Signal-to-Noise Ratio >98dB
Efficiency @ 4 Ohm >87%
THD <0.02%
Inputs / Wiring 1/0 AWG power/ground inputs; 8 AWG speaker terminals
Bass Boost 0–+9dB (30–60 Hz)
Infrasonic Filter 10–30 Hz
LPF Fixed with a selectable range (35–250 Hz)
Remote Level Control Dash-mount remote level control
Protection & Safety Thermal Protection (>75°C / 167°F); Over-Load; DC Output; Short Circuit Output; Voltage Input (>15.5V); Clipping Protection
Fuse / Power Input 450 A inline fuse recommended; Power Input Size 0 AWG
Enclosure Black Aluminum
Dimensions 17.4 x 8.77 x 2.67 inches
Made In Korea

Why Choose This Product?

The EXL-P4000X1D combines a 4000W RMS rating at 1 ohm with low stated THD and a signal-to-noise ratio above 98dB. Its bass boost, infrasonic filter, and fixed LPF with a selectable range provide controls for shaping the subwoofer signal.

Thermal and electrical protection features support a demanding installation, while the remote level control gives you an in-cabin way to adjust bass level.

Installation & Compatibility Notes

Plan for the amplifier’s 17.4 x 8.77 x 2.67-inch dimensions and its 1-ohm minimum impedance. The listed wiring details specify 1/0 AWG power/ground inputs, 8 AWG speaker terminals, a 0 AWG power input size, and a recommended 450 A inline fuse. Confirm the installation requirements for your system before connecting the amplifier.

Frequently Asked Questions

How much power does the EXL-P4000X1D deliver?

Its stated rating is 4000W RMS x 1 channel at 1 ohm.

What is the amplifier’s minimum impedance?

The listed minimum impedance is 1 ohm. Check the final load of your subwoofer system against this requirement.

Can I adjust bass level from the vehicle cabin?

Yes. The amplifier includes a dash-mount remote level control.

What fuse is recommended?

The listed recommendation is a 450 A inline fuse.

What are the bass-filter adjustment ranges?

Bass boost is 0–+9dB at 30–60 Hz, the infrasonic filter is 10–30 Hz, and the fixed LPF has a selectable range of 35–250 Hz.

Explore More

Shop DS18 products at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.