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Rectangular marine amplifier with silver casing and stainless steel hardware

Skar Audio

Skar Audio RP-150.4ABM 1000W 4-Channel Marine Amplifier

SKU CH-BGSH-31149

A 1000-watt marine amplifier delivering 150 watts per channel at four ohms and 250 watts at two ohms, with waterproof circuit coating, rust-proof case and adjustable crossover controls

  • Product typeAmplifier
  • Delivers 1000 watts peak power for loud, clear marine sound
  • 250 watts RMS per channel at 2 ohms drives four speakers with authority
  • 150 watts RMS per channel at 4 ohms matches typical marine speaker ratings
  • Fully marinized waterproof circuit board and rust-proof case survive salt spray and humidity
  • 105 dB signal-to-noise ratio keeps music clean from 20 Hz to 20,000 Hz

Marine Power

The Skar Audio RP-150.4ABM is a new 1000-Watt Class A/B four-channel amplifier built for marine audio systems. It delivers 150 Watts RMS per channel at 4 Ohms and 250 Watts RMS per channel at 2 Ohms. Bridged operation provides 500 Watts RMS across two channels. A waterproof coating on the circuit board and rust-proof paint on the case protect the internals from moisture and salt.

Installers needing four independent channels

This amplifier suits boat owners who want dedicated power for four speakers or a combination of speakers and subwoofers. The adjustable gain, variable high-pass and low-pass filters, and selectable Bass EQ at 0, 6, or 12 dB allow precise tuning for open-water acoustics. Builders who require more than four channels or a mono-block design for a single subwoofer should look at a different topology.

105 dB signal-to-noise ratio

A signal-to-noise ratio of 105 dB ensures a quiet noise floor so that music remains clear at low volumes and dynamic at high output. The frequency response spans 20 Hz to 20,000 Hz for full-range reproduction. Four-way protection circuitry guards against thermal, voltage, speaker, and DC faults. Four-gauge power and ground terminals support maximum current flow for consistent performance.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $271.99
Pricier than about 72% of the 1,147 comparable items (median $133.99).

Specifications

Product
Product typeAmplifier

Questions about this item

Which power rating matches my speakers — the 150 W at 4 ohms or the 250 W at 2 ohms?

Use the 150 W per channel at 4 ohms for typical marine speakers; the 250 W per channel at 2 ohms applies only if your speakers present a 2-ohm load.

What does the 1,000 W rating mean once the amp is installed?

The 1,000 W is a peak figure; continuous output is 150 W × 4 at 4 ohms, 250 W × 4 at 2 ohms, or 500 W × 2 when bridged.

What connections does the RCA input and 4-gauge power terminal actually support?

RCA inputs accept line-level signals from any source unit; 4-gauge power and ground terminals handle the current needed for the rated output.

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