JL Audio M400/4
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.
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 | 40 A (AFS, AGU or MaxiFuse™) |
Signal Processing
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 |
Pass-Through Preamp Output | None |
Source Channel Selection for PreOuts | N/A |
Physical Specifications
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 |
- SKU:
- M400/4
- UPC:
- 699440982719
- Condition:
- New
- Availability:
- This item has been discontinued, but we still have some stock left. Purchase soon to enjoy the savings!
- Shipping:
- Free 2-Day Shipping!
JL Audio Warranty
Mobile Audio Subwoofer Drivers | JL Audio Subwoofer Drivers are warrantied against defects in materials and workmanship for One (1) Year from purchase date. |
Mobile Audio Amplifiers and Electronic Products | JL Audio Amplifiers and Electronics are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Mobile Audio Speaker Systems | JL Audio Speaker Systems are warrantied against defects in materials and workmanship for One (1) Year from purchase date. |
Mobile Audio Engineered Connection Systems | JL Audio Engineered Connection Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Mobile Audio Enclosed Subwoofer Systems | JL Audio Enclosed Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Stealthbox® Subwoofer Systems | JL Audio Stealthbox® Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Speaker Systems and Subwoofers | JL Audio Marine Speaker Systems and Subwoofers are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Amplifiers and Electronics | JL Audio Marine Amplifiers and Electronics are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Engineered Connection Systems | JL Audio Engineered Connection Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
SlamPak™ Powersports Audio Systems | JL Audio SlamPak™ Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Stealthbox® Powersports Subwoofer Systems | JL Audio Stealthbox® Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Number Of Channels: |
4 Channel |
UPC: |
699440982719 |
RMS Power In Watts: |
251-500 Watts |
Bundle: |
No |
Feature 1: |
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). |
Feature 2: |
The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design |
Feature 3: |
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. W |
Feature 4: |
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. |
Condition: |
NEW |
Manufacturer SKU: |
98271 |
Manual: |
Click Here">Click here to download |
Weight: |
5.5000 lbs |