The PM400X4 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.

• 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

Specifications:

• Number of Channels:  4
  Rated Power  (RMS Continuous Power):
  50 Watts x 4 @ 4-Ohm
  100 Watts x 4 @ 2-Ohm
  200 Watts x 2 @ 4-Ohm Bridged
  Total Power  (Sum of Rated Power):  400 Watts
  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
  Efficiency (average):  67% @ 4-Ohm
  Total Harmonic Distortion (THD+Noise):  4-Ohm: <1.0%  2-Ohm: <1.0%
  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
  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
  Input Sensitivity:  150 mV – 12 V
  Signal Input:  Hi/Low level: 2 RCA pair
  Signal Output:  –
  Power Input Connector:  Captive C-Clamp
  Power Wire Gauge:  8 AWG to 4 AWG
  Speaker Output Connector:  Captive C-Clamp
  Speaker Wire Gauge:  8 AWG to 18 AWG
  Heat Sink Type:  Cast aluminum
  Cooling:  Convection
  Remote Controls:  –
  Visual Indicators:
  Power/Protect/Thermal LED
  Input Clip LED
  Output Clip LED
  Circuit Topology Class:  Class-A/B
  Operating Voltage:  9 – 16 VDC
  Recommended Fuse  (not included):  60 A
  Max. Current Draw (13.8V Sinewave):  60 A
  Average Current Draw (13.8V Music):  30 A
  Suggested Alternator:  75 A
  Shipping Weight:  10.8 Lbs. (4.89 Kg.)
  Dimensions (H x W x D):
  2.38 x 7.76 x 11.03 (in)
  6.05 x 19.71 x 28.02 (cm)