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Kicker KA51KPX3004 Weather Resistant 4 Channel Class D Car Amplifier

Name: Kicker KA51KPX3004 Weather Resistant 4 Channel Class D Car Amplifier
Brand: Kicker
SKU: KA51KPX3004
Availability: InStock

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Kicker

Kicker KA51KPX3004 Weather Resistant 4 Channel Class D Car Amplifier

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£249.95

Kicker KA51KPX3004

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.

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.

Key Features

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 – 20kHz
Dimensions: 22cm x 8.4cm x 4.3cm
Output Channels 4
Voltage (V) 12
Class D
Fuse Rating (A) 40A
Cable Gauge (AWG) 8
Amp Turn-On
- DC Offset
- 12V
Frequency Response (Hz) 20-20k
Filter High-Pass
Controller N/A
Input Channels
- 2
- 4
Input Type
- High Level
- Low Level
Input Sensitivity Low Level N/A
Input Sensitivity High Level 250mV-10V
Height (cm) 4.3
Width (cm) 22
Depth (cm) 8.4
Colour Black

Weight	2 kg

Delivery

How will you send my item?

We ship to addresses within the UK using Royal Mail and DPD couriers.

How much does delivery cost?

Royal Mail Tracked - 2-4 working day tracked service - £5.99.
DPD 2-3 Day - 2-4 working day tracked service - £8.99 .
DPD Next Day - Next working day tracked service - £12.99.
DPD Delivery - Non specific DPD service for larger/bulkier orders - £20.99.
Saturday/Sunday Service - Tracked service specified for Saturday/Sunday - £23.99.

For orders to UK Non-mainland and International destinations, there will be an additional charge at checkout. Please see below for more information.

How long does delivery take?

Depending on the delivery service you choose, delivery usually takes between 1-4 working days to mainland UK from the moment we despatch your order. Orders to UK non-mainland and international destinations can take longer.

When will you despatch my order?

Orders placed before 3pm are processed and despatched the same day (excluding bank holidays and weekends). Orders placed on weekends will be processed and despatched the following working day. *Please note that international orders may require extra checks before we are able to despatch your order so timescales may vary.

Can I track my delivery?

Yes - Order tracking is offered as standard on all items, whether they are shipped via DPD or Royal Mail. You will receive your tracking information via email once we have despatched your order.

UK Non-mainland and International destinations.

Post Brexit some of our delivery partners have changed the way we ship to international and offshore destinations. This means that the cost of shipping to some locations has increased significantly and additional paperwork may need to be completed for some international orders. Shipping for all items to UK Non-Mainland and International destinations will incur a charge at checkout. This charge is not final and additional postage may be required. Furthermore, this may incur additional delivery delays and also local customs charges which the buyer is responsible to pay. Shipping to international destinations may require further security checks and I.D. to be provided by the cardholder. We reserve the right to cancel any orders where an order does not pass our security checks or the additional postage is not paid. To avoid any confusion we would advise that you Contact Us before making your order.

What do you class as UK Non-mainland?

Rep. Ireland, N. Ireland, Channel Islands, Jersey, Guernsey, Isle of Wight, Isle of Man and Scottish Highlands. If you are unsure whether your address is classed as UK Non-mainland please feel free to contact us and an advisor will be happy to help. For any further enquiries with regards to your delivery please contact us on 020 8561 9845 and one of our adviser's will be happy to help.