Kicker
Kicker 51KPX3004 KPX 300W 4-Channel Class D Full-Range Amplifier
Reviewed byOrganicDiscount TeamUpdated 4 Jun 2026
Best price available
£249.99
Key features
- Compact yet powerful, the KPX300.4 4-Channel Amp delivers up to 300W in a weather-resistant design
- Perfect for motorcycles, boats, or tight installs, it powers 2- or 4-speaker systems with precision and clarity
- Independent gains and a variable 12dB crossover ensure optimal speaker performance, longevity, and sonic clarity
Product Overview
Compact yet powerful, the KPX300.4 4-Channel Amp delivers up to 300W in a weather-resistant design. Perfect for motorcycles, boats, or tight installs, it powers 2- or 4-speaker systems with precision and clarity. KPX 300W 4-Channel Weather-Resistant Amplifier – Big Power, Small Package The KPX300.4 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 is built to drive upto 4 speakers with clarity and precision, without putting extra strain on your charging system. Designed for versatility, it powers two- or four-speaker setups with ease. Independent gains and a variable 12dB crossover ensure optimal speaker performance, longevity, and sonic clarity.
With a wide input range, it’s easy to integrate with virtually any factory or aftermarket radio.
Full Feature List
Compact design fits under fairings or tight spaces Powers 2- or 4-speaker systems effortlessly Up to 300+ watts of clean power Weather-resistant construction for outdoor and marine use Built-in crossover controls for precise tuning Variable 12dB/octave hi-pass crossovers: 60/80/100/120Hz Puts very little strain on charging system
Specifications
- 75W x 4 @ 2Ω | 45W x 4 @ 4Ω 150W x 2 bridged @ 4Ω Frequency Response: 20Hz
- the KPX300.4 makes high-quality sound possible in even the most space-limited rides.
Pros & Cons
Pros
- Compact yet powerful
- Perfect for motorcycles
Cons
- Currently sold by only one merchant — limited price competition
- No customer reviews yet
- Price history not yet established
Price Analysis
Fair Price
The current price is around the average. It's a reasonable time to buy.
Current Best
£249.99
Average Price
£249.99
Lowest Ever
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Highest Ever
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Compare Prices (1 merchant)
Compare prices for Kicker 51KPX3004 KPX 300W 4-Channel Class D Full-Range Amplifier
| Merchant | Price | Shipping | Total | Status | |
|---|---|---|---|---|---|
Ca Car Audio Centre Best Price | £249.99 | — | £249.99 | Out of Stock | Go to Store |
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Product Details
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