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Car Audio
DC Audio

DC Audio 3.5k 3500 watt Mono Block Amplifier

Regular price $779.99
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Key features

  • Amplifier channels: 1
  • RMS output at 4 ohms: 750.0 W
  • RMS output at 2 ohms: 1800 W
  • RMS output at 1 ohm: 3500 W


Description

Product Overview

Build a dedicated subwoofer system around the DC Audio 3.5k 3500 watt mono block amplifier. Its 1-ohm stability, adjustable filters, and linkable Master/Slave operation give you control over a demanding bass setup.

Use it as a single amplifier for a high-power subwoofer or pair it with a second unit for a linked system rated up to 11,000 watts.

Key Features & Benefits

  • 1-ohm stability: Supports low-impedance speaker loads for high-current subwoofer builds.
  • Adjustable crossover and subsonic filter: Set the low-pass range from 35 Hz to 250 Hz and the subsonic filter from 10 Hz to 50 Hz.
  • Bass shaping: Adjust bass boost from 0 to 9 dB at 45 Hz and phase shift from 0 to 180.
  • Linked operation: Master/Slave capability supports pairing two amplifiers for a larger system.
  • System connections: RCA pass-through supports signal routing to additional amplifiers.
  • Driver-seat adjustments: The included wired remote lets you adjust bass level, while the clip indicator helps monitor gain setting.

Technical Specifications

DC Amp Model: 3.5k
Input Sensitivity 6V~0.2V
Frequency Response 20Hz~250Hz
24dB / Octave Crossover YES
Low Pass 35Hz ~ 250Hz
Subsonic Filter 10Hz-50hz
Bass Boost @45hz 0 ~ 9db
Phase Shift 0 ~ 180
Remote Control Yes
Clip Indicator Yes
Signal to Noise Ratio dB100
Damping Factor 200<
THD @ 4ohms Less than 0.1%
Fuse Rating External 350 amp
LED Status Lights Power and Protect
Master/Slave YES
Heatsink Length 21.26"/540mm
Heatsink Width 9.38"/238mm
Heatsink Height 2.35"/59.6mm
  • Rated power: 3500 watts; up to 11,000 watts when paired with a second unit.
  • Speaker load: 1-ohm stable.
  • Connections: 1/0 AWG power and ground inputs, 8 AWG speaker terminals, and RCA pass-through.

Why Choose This Product?

The DC Audio 3.5k combines subwoofer-focused filtering with bass and phase adjustments, helping you tune the signal to your system. Its Master/Slave capability gives you the option to build around one amplifier or expand with a second.

Installation & Compatibility Notes

Plan space for the heatsink, which measures 21.26 inches long, 9.38 inches wide, and 2.35 inches high. The amplifier has 1/0 AWG power and ground inputs, 8 AWG speaker terminals, and an external 350 amp fuse rating.

Confirm your subwoofer’s impedance, system wiring, and available mounting space before installation. The product details identify 1-ohm stability and linked operation; follow the amplifier’s installation instructions when configuring either setup.

Frequently Asked Questions

Can the DC Audio 3.5k operate at 1 ohm?

Yes. It is specified as 1-ohm stable.

Can I link two amplifiers?

Yes. Master/Slave operation supports a paired setup, rated up to 11,000 watts with a second unit.

What filter adjustments are available?

The low-pass crossover adjusts from 35 Hz to 250 Hz, and the subsonic filter adjusts from 10 Hz to 50 Hz. Bass boost is adjustable from 0 to 9 dB at 45 Hz.

What wiring connections does it use?

It has 1/0 AWG power and ground inputs, 8 AWG speaker terminals, and RCA pass-through.

What are the heatsink dimensions?

It measures 21.26 inches long, 9.38 inches wide, and 2.35 inches high.

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