PA D4000.4

Super-Efficient 4-Channel Mobile Audio Amplifier

Sleek. Compact. Powerful. When install space is at a premium, but your sound system demands plenty of power to realize its full potential, Polk Audio’s super-efficient PA D4000.4 amplifier is a very cool solution.

  • Super-Efficient Class D Design
  • High-Speed MOSFET Switching power supply
  • Sleek design under 2" tall
  • Thermal, DC offset, reverse DC voltage and short circuit protection
PA D4000.4
Details & Specifications
  • Total Pieces 1
  • Included Accessories • (4) Phillips Screws
    • (1) Terminal Block Adaptor
  • Standard Warranty (When purchased from an Authorized Dealer) 1 Year
  • Warranty When Bought from and Installed by an Authorized Dealer 2 Years
  • Height 1.813" (4.6 cm)
  • Width 10.938" (27.78 cm)
  • Depth 6.75" (17.15 cm)
  • Weight 5 lbs (2.27 kg)
  • RMS Continuous Power @ 4 Ohms 125 W x 4
  • RMS Continuous Power @ 2 Ohms 200 W x 4
  • Power Bridged @ 4 Ohms 400 W x 2
  • Distortion at Rated Power <0.1%
  • Minimum Impedance Bridged 4 Ohms
  • Minimum Impedance Not Bridged 2 Ohms
  • Signal-to-noise Ratio 105 dB
  • Frequency Response 20 Hz-20 kHz
  • Damping Factor >100
  • Crossover Filter Slope (dB/octave) 12 dB/octave
  • Filter Switch (Front) 3-position (HPF, Full, BPF)
  • High Pass Filter Frequency Range (Front) 20 Hz - 4 kHz
  • Low Pass Filter Frequency Range (Front) 50 Hz - 5 kHz
  • Front Gain Control 200 mV - 6 V
  • Filter Switch Rear 3-position (HPF, Full, BPF)
  • High Pass Filter Frequency Range Rear 20 Hz - 4 kHz
  • Low Pass Filter Frequency Range Rear 50 Hz - 5 kHz
  • Rear Gain Control 200 mV - 6 V
  • Line Level Inputs Y N 200 mV - 6 V
  • Line Level Outputs (Y/N) No
  • LED Power Indicator No
  • LED Protection Indicator No
  • Supply Voltage 10 V - 16 V
  • Fusing & Power/Type (1) 40A (1) 35A ATC
  • Power Connections 4 AWG
  • Ground Connections 4 AWG
  • Speaker Connections 12 AWG
  • Channels 4
  • Amplifier Class Bridgeable Class D MOSFET