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Polk Audio PA D4000.4 (PAD4000.4)

800W RMS PA D Series Class-D 4-Channel Car Amplifier

When install space is at a premium, but your sound system demands plenty of power to realize its full potential, Polk Audio’s new super-efficient D Series amplifiers are a very cool solution. 

Polk's PA D4000.4 4-channel amplifier may be small, but it can power your front and rear speakers with up to 125 watts RMS each.  Or, you can switch this little beast over to 2-channel mode to drive a couple subwoofers with up to 200 watts RMS each.  However you use it, this amplifier will fit in almost any location.

Separate high- and low-pass filters on the front and rear channels allow this versatile amp to run a variety of speaker systems, like bi-amped mid-bass and tweeter components, or two front speakers and a sub.

General Features:

PA D Series 4-Channel Class D Car Amplifier

RMS Power Rating:

4 ohms: 125 watts x 4 chan.

2 ohms: 200 watts x 4 chan.

Bridged, 4 ohms: 400 watts x 2 chan.

CEA-2006 Compliant Amplifier

Pulse Width Modulated MOSFET power supply

LED power (blue) and protect (red) indicators

Soft start turn-on

4, 3 and 2 Channel Operation

4-way protection circuitry (thermal, overload, reverse polarity & speaker short protection)

Heavy duty aluminum alloy heat-sink

Nickel-plated RCA level inputs

Nickel-plated screw terminals

Input sensitivity: 200mV - 6V

Frequency Response: 20 - 20,000 Hz

Damping Factor: >100

Total Harmonic Distortion (THD): <0.1%

Signal to Noise Ration: 105 dBA

Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier

Variable high-pass filter: 20 - 400 Hz (10x Capable), 12 dB/octave

Variable low-pass filter: 50 - 500 Hz (10x Capable), 12 dB/octave

Fuse Rating: 40A x 1 + 35A x 1

Supply Voltage: 10V - 16V

12 AWG Speaker Connections

Dimensions: 6-3/4"W x 10-15/16"L x 1-13/16"H