Product Highlights:

The PM600X4 is a 600 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.

The Punch PM600X4 multi-channel amplifier is versatile to power any audio system configuration. In addition to 4-channel stereo mode, you can bridge both channels to create a high power 2-channel amp, or run stereo speakers on the front with subwoofers on the rear in 3-channel mode. The variable HP/LP crossover and built-in Punch EQ allows for precise tuning of Bass frequencies and the Pass-Thru RCA jacks provide flexibility as your system grows and keeping Y-adapters to a minimum.

• High level input capable with Auto Turn-On circuit
• RCA pass-thru outputs
• Features C.L.E.A.N. Set-up
• Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator)
• 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
• 2 Year Warranty

Specifications:

• Input Sensitivity150 mV - 12 V
• Recommended Fuse (not included)100 A
• Average Current Draw (13.8V Music)45 A
• Efficiency (average)68% @ 4-Ohm
• Dynamic Power 
• (PVC/PowerCube®)129 Watts x 4 @ 4-Ohms 0° Res 
• 211 Watts x 4 @ 2-Ohms 0° Res
• CEA-2006 CompliantCEA-2006 Guidelines CEA-2006 Power Rating
• 75W x 4 @ 4ä‹_
• ≤1.0% THD+N
• Shipping Weight12.8 Lbs. (5.80 Kg.)
• Suggested Alternator75 A
• Crossover ControlsFront/Rear High-Pass (HP): 50Hz-250Hz @ 12dB/octave Butterworth 
• Front/Rear Low-Pass (HP): 50Hz-250Hz 12dB/octave Butterworth 
• All-Pass: Yes
• Number of Channels4
• Operating Voltage9 - 16 VDC
• Max. Current Draw (13.8V Sinewave)90 A
• Total Harmonic Distortion (THD+Noise)4-Ohm: <1.0% 
• 2-Ohm: <1.0%
• Rated Power 
• (RMS Continuous Power)75 Watts x 4 @ 4-Ohm 
• 150 Watts x 4 @ 2-Ohm 
• 300 Watts x 2 @ 4-Ohm Bridged
• Total Power 
• (Sum of Rated Power)600 Watts
• BridgeableYes
• Tone ControlsFront Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or 
• Front Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz 
• Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or 
• Rear Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz 
• Function depends upon LP/AP/HP switch position
• Signal InputHi/Low level: 2 RCA pair
• Signal OutputLow level: 1 RCA pair
• Power Input ConnectorCaptive C-Clamp
• Power Wire Gauge4 AWG
• Speaker Output ConnectorCaptive C-Clamp
• Speaker Wire Gauge8 AWG to 18 AWG
• Heat Sink TypeCast aluminum
• CoolingConvection
• Remote ControlsOptional Punch Level Control (PLC2) Ready
• Visual IndicatorsPower/Protect/Thermal LED 
• Input Clip LED3 
• Output Clip LED1,2,3
• LED Color Legend: 
• 1BLUE: <0.5% THD 
• 2VIOLET: 1% THD 
• 3RED: 10%+ THD
• Circuit Topology ClassClass A/B
• Frequency Response20Hz to 20kHz +/- 1.0dB
• Dimensions (H x W x D)2.38 x 7.76 x 13.28 (in) 
• 6.05 x 19.71 x 33.73 (cm)

What's in the Box:

• Owner's manual
• 4-Channel marine amplifier
• 2.5mm Allen wrench
• Four 1-1/2" Self-tapping screws
• Setup disc (CD)
• Setup guide
• Certificate of Performance Verification