Kenwood eXcelon X503-1 Mono Subwoofer Amplifier, 500 Watts x 1 at 2 Ohms

$398.00 CAD

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X503-1

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

The Kenwood eXcelon X503-1 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. A wired bass level remote is included. As an eXcelon amplifier it carries Kenwood's 2-year warranty.


The Kenwood eXcelon X503-1 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. A wired bass level remote is included. As an eXcelon amplifier it carries Kenwood's 2-year warranty.

Key features

  • eXcelon mono sub amp, 500W RMS at 2 ohms, 300W at 4 ohms
  • Wired remote bass level control included
  • Variable low-pass filter, 25Hz infrasonic filter and 40Hz bass boost
  • Speaker-level input harness included; signal-sensing turn-on
  • Shielded output coil and polymer capacitors for lower noise

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 Included wired level control
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 2-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 - Included

Input Voltage (LOC)

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

Warranty

  • 2 Years
Kenwood eXcelon X503-1 Mono Subwoofer Amplifier, 500 Watts x 1 at 2 Ohms

$398.00 CAD

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