The JL Audio MHD600/4 is a compact, high-output 4-channel Class D marine amplifier engineered for clean power delivery in harsh onboard environments. Supplied by Recmar, this is a genuine JL Audio marine amp ideal for running four full-range speakers or a 3-channel setup (front/rear + bridged sub).

• Rated power (11–14.5V): 150W RMS x 4 @ 1.5–4Ω; 300W RMS x 2 bridged @ 3–8Ω
• Amplifier topology: Class D switching with Single-Cycle Control™
• Power supply: R.I.P.S. regulated switching supply for consistent output
• Crossovers: selectable High-Pass or Low-Pass, 50–500 Hz, 12/24 dB per octave (Front & Rear filter sections)
• Inputs/outputs: differential-balanced RCA inputs (Front/Rear), 2/4-ch input mode, buffered 2-ch preamp output (front or summed)
• Marine-ready build: powder-coated finishes, gasketed control cover, stainless hardware
• Electrical: recommended fuse 50A (AFS/AGU/MaxiFuse); minimum copper power/ground wire 4 AWG
• Dimensions (W x D x H): 10.74 x 7.85 x 1.93 in (273 x 199.5 x 49 mm)

OEM reference: JL Audio 98224 (Model: MHD600/4). SKU: JLMHD600/4.

Important: Designed for 12V negative-ground electrical systems. Optional accessories (sold separately) include the JL Audio HD-RLC remote level control and HD Stack Kit for stacking compatible amps. Confirm ratings, specification and fitment before ordering.