Kenwood
Kenwood eXcelon XM502-1 Marine/Motorsports Mono Subwoofer Amplifier 500W RMS @ 2 Ohms
Kenwood eXcelon XM502-1 Marine/Motorsports Mono Subwoofer Amplifier 500W RMS @ 2 Ohms
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***This Item requires an additional 3-5 Days Handling Time***
Kenwood eXcelon XM502-1 is a compact, all-weather mono subwoofer amplifier built for boats, side-by-sides, motorcycles, and trucks that need serious low end in tight spaces. It delivers up to 500 watts RMS x 1 at 2 ohms from a rugged, Class D chassis that’s designed to live in real-world marine and powersports environments.
Key Features
- Mono subwoofer powersports/marine amplifier designed for boats, UTVs, motorcycles, and outdoor builds
- Up to 500W RMS x 1 at 2Ω or 300W RMS x 1 at 4Ω for strong, controlled bass
- Efficient Class D design keeps the amp small, cool-running, and easy to mount
- Conformal-coated circuit board, protective terminal cover, and stainless hardware for harsh, wet environments
- Variable low-pass crossover (50–200 Hz, 24 dB/octave) to dial in your sub stage
- Selectable bass boost (0–18 dB at 40 Hz) for extra punch when you want it
- Built-in 25 Hz subsonic filter (24 dB/octave) to protect woofers in vented or free-air applications
- Speaker-level inputs with included harness plus preamp RCA inputs for flexible integration
- Signal-sensing turn-on for easy hookup with factory and aftermarket source units
- Compatible with the optional KCA-RC01A wired level remote (sold separately) for dash or cockpit bass control
Performance
The XM502-1 is purpose-built as a dedicated subwoofer amp for marine and powersports duty. Its compact footprint lets you tuck it under a seat, inside a fairing, or in a side-by-side storage pocket, while still delivering enough real-world power to wake up a serious 10" or 12" marine subwoofer. The Class D topology keeps current draw reasonable and heat under control, which is critical in small, sealed compartments.
Between the variable low-pass filter, adjustable bass boost, and onboard subsonic filter, you can tune the XM502-1 to match sealed, ported, and infinite-baffle sub installations. Pair it with quality wiring and a solid charging system and you get tight, reliable bass that cuts through wind, engine, and water noise without beating up your electrical system.
Technical Specifications
| Application | Mono Class D subwoofer amplifier for marine and powersports use |
| Channels | 1 (mono) |
| RMS Power Output @ 4Ω | 300 watts x 1 (20–200 Hz, ≤1.0% THD) |
| RMS Power Output @ 2Ω | 500 watts x 1 (100 Hz, ≤1.0% THD) |
| Peak Power | 1000 watts max |
| Frequency Response | 20–200 Hz (+0, –3 dB) |
| Low-Pass Filter | Variable 50–200 Hz, 24 dB/octave |
| Subsonic Filter | Fixed 25 Hz, 24 dB/octave |
| Bass Boost | 0–18 dB centered at 40 Hz |
| Input Sensitivity | 0.2–5.0V (RCA inputs) |
| Signal-to-Noise Ratio | 100 dB |
| Inputs | RCA low-level inputs, speaker-level inputs with included harness |
| Remote Level Ready | Yes – accepts optional KCA-RC01A wired level control (sold separately) |
| Dimensions (W × H × D) | 8-3/8" x 2-1/16" x 5-7/8" (213 x 53 x 149 mm) |
| Weight | Approx. 3.3 lbs (1.5 kg) |
| Power Requirements | 12V DC vehicle/marine electrical systems |
Ideal Applications
- Boat and marine audio systems needing a dedicated subwoofer channel in tight helm or cabin spaces
- Side-by-side and UTV builds where space, weather resistance, and reliable bass output matter
- Motorcycle and powersports subwoofer upgrades paired with compact loaded enclosures
- Truck and Jeep cargo-area sub systems where a small-footprint mono amp is preferred
What’s Included
- Kenwood eXcelon XM502-1 mono subwoofer amplifier
- Speaker-level input harness
- Mounting hardware (stainless-steel screws)
- Owner’s manual and documentation
Why Buy From MCOR Automotive
- Authorized Kenwood eXcelon dealer
- 22+ years of real-world marine, powersports, and mobile audio installation experience
- System design help for matching subs, wiring, and charging upgrades to your application
- Trusted upgrade partner for serious riders, boaters, and enthusiasts who expect their gear to survive the elements
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