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Silver rectangular marine amplifier with gold RCA ports and mounting hardware

PYLE AUDIO

PYLE AUDIO PLMRA400 Marine Amplifier 400 W 4 Channel

SKU CH-FDWP-VHEWA MPN PLMRA400

Waterproof four-channel marine amplifier delivers 400 W output, accepts high- and low-level inputs, and includes thermal and short-circuit protection

  • Product typeOthers
  • Product weight4.28
  • Waterproof design protects audio system on boats or by the pool
  • 400 W output drives four channels for balanced sound coverage
  • Accepts high and low level inputs for wide head-unit compatibility
  • Remote turn on off enables convenient amplifier control
  • Gold plated RCA inputs maintain clean signal transfer

Marine audio amplifier

The Pyle Hydra PLMRA400 is a four-channel marine amplifier rated at 400 watts PMPO. It runs on a 12-volt DC supply and accepts both high-level and low-level inputs for broad head-unit compatibility. A remote turn-on lead simplifies control from the helm. Gold-plated RCA connectors resist corrosion in damp environments.

Upgrade from basic head-unit power

This amplifier replaces the limited internal output of a standard marine stereo. The jump is worth it when you need cleaner volume at speed or want to drive multiple speaker pairs without distortion. It is not for installations that require more than four channels or higher continuous power than the rated figure. Buyers needing separate zone control or digital signal processing should look elsewhere.

Sustained output with thermal protection

A heavy-duty aluminium alloy heatsink dissipates heat during long listening sessions. Built-in thermal overload and short-circuit protection shut the amp down before damage occurs. The unit weighs 4.28 and includes mounting screws and hardware for secure installation. It is designed to maintain stable operation over extended periods rather than short bursts.

How it compares

Measured against everything we stock in Boat Audio & Electronics, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 73% of the 312 comparable items (median $69.49).

Specifications

Product
Brand namePyle
Product typeOthers
Size & build
Shipping weight1.88 kg
Package size220 × 203 × 50 mm

Questions about this item

What mounting hardware is included with the PLMRA400 amplifier?

The amplifier comes complete with mounting screws and hardware for installation on a boat or dock.

How do you connect the remote turn-on lead so the amplifier powers up with the head unit?

Connect the remote turn-on wire to the head unit's remote output so the amplifier switches on and off with the source unit.

What should be checked periodically to keep the amplifier running reliably in a marine environment?

Inspect the heavy-duty aluminium alloy heatsink and all wiring connections for corrosion or debris buildup.

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