JL Audio M400/4 4-Channel Class D Full-Range Marine Amplifier 400W

Packs a serious full-range punch

The JL Audio M400/4 4-Channel Class D Full-Range Marine Amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 Ω (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is NexD ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.

Use the M400/4 in combination with our M600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the M400/4 by itself to power two satellites, plus a subwoofer. With M-Series amplifier, the possibilities are endless.

The M400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's Ch. 1 & 2 level or overall level can be directly controlled from a remote location.

This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.

JL Audio M400/4 4-Channel Class D Full-Range Marine Amplifier Specifications:

• Frequency Response: 12 Hz - 22 kHz (+0, -1dB)
• S/N Ratio, referred to highest rated power: >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
• S/N Ratio, referred to 1 W: >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
• Damping Factor @ 4 Ω: >150 / 50 Hz
• Damping Factor @ 2 Ω: >75 / 50 Hz
• THD+N (Total Harmonic Distortion plus Noise) @ Rated Power: <1% @ 2 Ω per Ch.
• Input Voltage Range @ RCA Inputs: 100 mV - 4 V RMS
• Min.Copper Power / Ground Wire Gauge: 4 AWG wire
• Fuse Rating: 40 A (AFS, AGU or MaxiFuse)
• Dimensions (HxWxD): 52 x 216 x 180mm (2.05 x 8.52 x 7.09in)
• Net Weight: 4.75 lb / 2.15 kg