This is the 2nd vehicle that I have had this installed in. Would go back for a third when needed
Kenwood eXcelon X303-4 4 Channel Amplifier, 75 Watts x 4 at 2 Ohms
$398.00 CAD
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X303-4
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$398.00 CAD
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$398.00 CAD
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Expert Verdict (2026) - Why Buy?
The Kenwood eXcelon X303-4 is a 4-channel Class D amplifier rated 50W x 4 RMS at 4 ohms and 75W x 4 at 2 ohms.
Speaker-level inputs with signal-sensing turn-on let it work with a factory stereo. It's Hi-Res Audio certified. As an eXcelon amplifier it carries Kenwood's 2-year warranty.
Key features
- eXcelon 4-channel Class D amp, 75W x 4 at 2 ohms
- Hi-Res Audio certified
- Shielded output coils and polymer capacitors for lower noise
- Speaker-level input harness included; signal-sensing turn-on
- Variable high-pass and low-pass filters, plus bass boost
- Set-screw terminals, all on one side
Specifications
| Channels | 4 (bridgeable to 2) |
|---|---|
| Class | D |
| RMS power, 4 ohms | 50W x 4 (CTA-2006-D) |
| RMS power, 2 ohms | 75W x 4 |
| Bridged, 4 ohms | 150W x 2 |
| Max power | 600W |
| Inputs | RCA 0.2-5.0V; speaker-level 4.0-12.0V |
| Crossovers | HPF and LPF 50-200Hz, -12dB/oct (A/B) |
| Bass boost | 40Hz, 0 to +18dB (B channel) |
| Remote | None |
| Hi-Res Audio certified | Yes |
| Fuse | 20A x 2 |
| Current draw | 19A |
| 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 | 1.4 kg (3.1 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 (19A) 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
Specifications
