M-Series 4-Channel Class-D Full-Range Marine-Grade Amplifier, 75-Watts x 4-Channel @ 4-Ohm
This tiny amplifier packs a serious full-range punch, delivering a staggering 100W to each of its four channels into 2Ω (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is JL's 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 JL's M600/1 monoblock to build a 1000W 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 12dB / 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 50-500Hz. 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.
Specifications
@ 4 Ω
75 W RMS x 4
@ 2 Ω
100 W RMS x 4
Bridged @ 4Ω
200 W RMS x 2
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 @ 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™)
Filter Mode(s)
Low-Pass or High-Pass
Filter Slope(s)
12 dB/octave
Filter Frequency Range
50 Hz - 500 Hz
Detented, Calibrated Filter Freq. Potentiometers
Yes
Filter Defeat Function
Yes
Remote Level Control
Optional (HD-RLC)
Remote Level Modes
2 or All channels
Channel Input Mode Switch
Yes (2/4 ch.)
Pass-Through Preamp Output
Buffered
Source Channel Selection for PreOuts
Yes
JL Audio M400/4 Manual
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