JL Audio M400/4 Four Channel Monoblock Subwoofer Amplifier 100W

This tiny 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 our 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. Rated Continuous (RMS) Power @ 14.4 V @ 4 Ω 75 W RMS x 4 @ 2 Ω 100 W RMS x 4 Bridged @ 4Ω 200 W RMS x 2 Rated Continuous (RMS) Power @ 12.5 V @ 4 Ω 60 W RMS x 4 @ 2 Ω 90 W RMS x 4 Bridged @ 4Ω 180 W RMS x 2 General 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 @ 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 50 A (AFS, AGU or MaxiFuse™) Signal Processing Filter Modes Low-Pass or High-Pass Filter Slope (dB/Octave) 12 dB Filter Frequency Range 50-500 Hz Detented, Calibrated Filter Freq. Potentiometers Yes Filter Defeatable? 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 Type Buffered Source Channel Selection for PreOuts Yes Height (H) 2.05 in / 52 mm Width (W) 8.52 in / 216 mm Depth (D) 7.09 in / 180 mm Net Weight 4.75 lb / 2.15 kg