Kicker 51KPX5001 1 Channel Class D Amplifier 500w RMS
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KPX 500W Monoblock Class D Subwoofer Amplifier
51KPX5001
The KPX500.1 is engineered to deliver massive power in a compact, weather-resistant design - perfect for motorcycles, boats, or any vehicle with limited space. Don’t let its small footprint fool you; this amp will deliver up to 500 watts of power, without putting extra strain on your charging system.
The KPX500.1 Subwoofer Amp features a 24dB/octave variable low pass crossover and 24dB/octave variable subsonic filter to protect your subwoofers and precisely craft your sound. With a wide input range, it’s easy to integrate with virtually any factory or aftermarket radio.
Features
- Compact design fits under fairings or tight spaces
- Dedicated subwoofer amplifier
- Up to 500+ watts of clean power
- Weather-resistant construction for outdoor and marine use
- Built-in crossover controls for precise tuning
- CXA remote bass control compatible
- Puts very little strain on charging system
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Specification
| RMS Power @ 14.4V | 150W x 1 @ 4Ω / 300W x 1 @ 2Ω / 500W x 1 @ 1Ω |
|---|---|
| Output Channels | 1 |
| Voltage (V) | 12 |
| Class | D |
| Fuse Rating (A) | 60A |
| Cable Gauge (AWG) | 8 |
| Amp Turn-On | DC Offset / 12V |
| Frequency Response | (Hz) 10-160 |
| Signal-to-Noise Ratio (dB) | 90 |
| Filter | Low-Pass |
| Controller | CXARC (Sold Separately) |
| Input Channels | 2 |
| Input Type | High Level / Low Level |
| Input Sensitivity Low Level | N/A |
| Height (cm) | 4.3 |
| Width (cm) | 22 |
| Depth (cm) | 8.4 |
What's Included
- Kicker 51KPX5001
Kicker
About the Kicker 51KPX5001
From our tech experts at CEN
A monoblock amplifier for subwoofer duty, rated at 500w RMS. Everything it makes goes to the bass.
Who it suits
Anyone adding a subwoofer that needs real power behind it rather than a compact powered unit.
Our tech experts advise
Published power figures mean little until the amplifier is matched to the speakers and the gains are set with a meter rather than by ear. It needs a fused feed from the battery on the correct cable gauge, the part we most often see done badly. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
