This is a 400 Watt 4-channel amplifier with high dynamic power using Class-A/B technology and a conformal coated pc board designed for motorsport and marine applications.
This is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM - you got "The PUNCH." With its flexible design, the PM400X4 is an excellent amplifier choice for virtually any vehicle.
Punch Marine 400 Watt 4-Channel Amplifier Features:
- High level input capable with Auto Turn-On circuit
 - Features C.L.E.A.N. Set-up
 - 12dB/octave Butterworth crossover
 - On-board Punch EQ with +18dB boost @ 45Hz
 - Muted turn on
 - Stealth top mounted control panel
 - Cast aluminum heatsink
 - Short circuit protection
 - Over current protection
 - Marine grade two part epoxy coating on circuit boards
 - Marine grade stainless steel hardware
 
Specs:
- Number of Channels - 4
 - Total Power (Sum of Rated Power) - 400 Watts
 - Rated Power (RMS Continuous Power) - 50 Watts x 4 @ 4-Ohm, 100 Watts x 4 @ 2-Ohm, 200 Watts x 2 @ 4-Ohm Bridged
 - Dynamic Power (PVC/PowerCube®) - 82 Watts x 4 @ 4-Ohm, 137 Watts x 4 @ 2-Ohm, 266 Watts x 2 @ 4-Ohm Bridged
 - Bridgeable - Yes
 - Frequency Response - 20Hz to 20kHz +/- 1.0dB
 - Input Sensitivity - 150 mV - 12 V
 - Circuit Topology Class - Class A/B
 - Efficiency (average) - 67% @ 4-Ohm
 - Total Harmonic Distortion (THD+Noise) - 4-Ohm: <1.0%, 2-Ohm: <1.0%
 - Signal Input - Hi/Low level: 2 RCA pair
 - Tone Controls - Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or, Front Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz, Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or, Rear Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz, Function depends upon LP/AP/HP switch position
 - Crossover Controls - Front High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave Butterworth, Rear High-Pass/Low-Pass (HP/LP): 50Hz-250Hz @ 12dB/octave Butterworth, All-Pass: Yes
 - Visual Indicators - Power/Protect/Thermal LED, Input Clip LED3, Output Clip LED1,2,3 (LED Color Legend: 1BLUE: <0.5% THD, 2VIOLET: 1% THD, 3RED: 10%+ THD)
 - Power Wire Gauge - 8 AWG to 4 AWG
 - Power Input Connector - Captive C-Clamp
 - Speaker Wire Gauge - 8 AWG to 18 AWG
 - Speaker Output Connector - Captive C-Clamp
 - Cooling - Convection
 - Heatsink
 - Operating Voltage - 9 - 16 VDC
 - Recommended Fuse (not included) - 60 A
 - Average Current Draw (13.8V Music) - 30 A
 - Max. Current Draw (13.8V Sinewave) - 60 A
 - Suggested Alternator - 75 A
 
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