Kenwood KAC-531 Mono Subwoofer Amplifier, 500 Watts x 1 at 2 Ohms

$398.00 CAD

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KAC-531

Regular price $398.00 CAD
Sale price $398.00 CAD Regular price
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Expert Verdict (2026) - Why Buy?

The Kenwood KAC-531 is a mono Class D subwoofer amplifier rated 500 watts RMS at 2 ohms (300 watts at 4 ohms). Speaker-level inputs with signal-sensing turn-on let it work with a factory stereo. It's ready for the optional KCA-RC01A bass knob (sold separately).


The Kenwood KAC-531 is a mono Class D subwoofer amplifier rated 500 watts RMS at 2 ohms (300 watts at 4 ohms).

Speaker-level inputs with signal-sensing turn-on let it work with a factory stereo. It's ready for the optional KCA-RC01A bass knob (sold separately).

Key features

  • Mono Class D sub amp, 500W RMS at 2 ohms, 300W at 4 ohms
  • Variable low-pass filter (50-200Hz) and 25Hz infrasonic filter
  • Bass boost at 40Hz, up to +18dB
  • Speaker-level input harness included; signal-sensing turn-on
  • Ready for the optional KCA-RC01A remote bass knob

Specifications

Channels 1 (mono)
Class D
RMS power, 4 ohms 300W x 1 (CTA-2006-D)
RMS power, 2 ohms 500W x 1
Max power 1000W
Inputs RCA 0.2-5.0V; speaker-level 4.0-12.0V
Crossovers LPF 50-200Hz, -24dB/oct; infrasonic filter 25Hz, -24dB
Bass boost 40Hz, 0 to +18dB
Remote Optional KCA-RC01A (sold separately; the amp is 'Optional Wired Remote Ready')
Hi-Res Audio certified No
Fuse 30A x 2
Current draw 28A
Wire terminals Power/ground terminals accept 4-6 AWG; speaker terminals 8-16 AWG
Size (W x H x D) 213 x 53 x 149 mm (8-3/8 x 2-1/16 x 5-7/8 in)
Weight 1.5 kg (3.3 lb)
Warranty 1-year Kenwood warranty

Questions

Will it work with my factory stereo?

Yes. It has speaker-level inputs and turns on automatically when it senses a signal, so it can run from a factory radio.

What wiring kit do I need?

That depends on the amp's current draw (28A) and where it goes in the vehicle. We'll match the right gauge power kit and fuse when you book the install.

Do you install amplifiers?

Yes, at our Markham shop. We run the power wire to the battery with a fuse, set the gains and crossovers, and test the system before you leave.

Specifications

Power Rating

  • 500 Watts x 1

Stable To (Ohms)

  • 2 Ohms Mono

Channels

  • 1 Channel (Mono Block)

Remote Level Control

  • Yes - Optional Purchase

Input Voltage (LOC)

  • 0.2 Volts - 5.0 Volts (RCA)
  • 4.0 Volts - 12.0 Volts (LOC)

Warranty

  • 1 Year
Kenwood KAC-531 Mono Subwoofer Amplifier, 500 Watts x 1 at 2 Ohms

$398.00 CAD

Questions about this amplifier?

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