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  • Image of a Kicker marine amplifier on a white background.

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4-Channel Marine Amplifier Kicker KMA600.4 Class D, 600W RMS, OEM 48KMA6004 (KA48KMA6004)

KA48KMA6004

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£358.02 GBP
£358.02 GBP
Tax included. Shipping calculated at checkout.
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Product Specifications and Features

The Kicker KMA600.4 (OEM 48KMA6004) is a genuine KM-Series, REAL MARINE™ 4-channel Class-D amplifier built to deliver strong, efficient power in harsh saltwater and UV environments. It’s ideal for powering up to four speakers (or up to eight when wiring multiple speakers per channel within safe impedance limits), or for bridging into two higher-power channels for tower or zone setups.

  • OEM / MFR: Kicker 48KMA6004 (KMA600.4) | SKU: KA48KMA6004
  • RMS power @ 14.4V: 75W x 4 @ 4Ω (stereo) | 150W x 4 @ 2Ω (stereo) | 300W x 2 @ 4Ω (bridged)
  • Dynamic power: 725W
  • Frequency response: 10Hz–20kHz (+0/-1dB)
  • Active crossover: 12dB/oct, variable 50–200Hz (HP / LP / OFF)
  • Bass boost: KickEQ™ 0–6dB @ 40Hz
  • Inputs: High-level (250mV–10V) and low-level RCA (125mV–5V); compatible with Kicker KISL speaker-to-RCA adapters when using speaker-level outputs
  • Marine-ready build: conformal-coated PCB, stainless-steel hardware, and ABYC/NMMA-compliant power connections (REAL MARINE™)
  • Installation notes (per manual): 2Ω stable in stereo, 4Ω minimum when bridged; use an 80A external fuse and 4 AWG power/ground wiring, with the fuse installed within 7 in (18 cm) of the battery

Before ordering: confirm your speaker wiring, impedance, available mounting space, and power wiring/fusing meet the amplifier requirements to avoid damage and ensure safe operation.

Shipping Information

All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.

Out of stock items can be back-ordered with a typical 3–4 week lead time.

If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.

All times are in UK BST.

Notice: Due to ongoing conflicts impacting logistics, some deliveries or re-stocking may take a little longer than expected. We're working to get your order to you as quickly as possible.
4-Channel Marine Amplifier Kicker KMA600.4 Class D, 600W RMS, OEM 48KMA6004 (KA48KMA6004)

£358.02 GBP

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