Product Description:
The JL Audio M400/4 is a compact, efficient, and powerful 4-channel Class D marine amplifier, designed to deliver clear, high-fidelity audio even in the toughest marine environments. With 100 watts RMS x 4 @ 2 ohms, this amplifier is perfect for powering your full-range marine speakers or creating a bridged 2-channel setup for high-power applications.
Built with JL’s NexD™ switching technology and marine-grade durability, the M400/4 is a go-to amp for serious marine audio enthusiasts.
âś… Key Features:
Total RMS Power: 400 Watts
75W x 4 @ 4 ohms
100W x 4 @ 2 ohms
200W x 2 @ 4 ohms (bridged)
Class D NexD™ Technology – Clean power, compact footprint, low heat
Marine-Grade Protection – Corrosion-resistant, sealed against salt, moisture, and UV
Variable Crossovers (50–500 Hz) – High-pass, low-pass, or band-pass filtering
Differential-Balanced Inputs – Reduce noise and interference
Remote Level Control Compatible (HD-RLC, sold separately)
2/4 Channel Input Mode Selection – Flexibility for system design
📏 Dimensions:
8.26 in (L) Ă— 7.09 in (W) Ă— 2.05 in (H)
📦 What’s Included:
Brand New JL Audio M400/4 Amplifier (Factory Sealed)
Mounting hardware
Gasketed control panel cover
Owner’s manual