Troubleshooting Tips; Specifications - Polk Audio PA D4000.4 El Manual Del Propietario

TrOuBLESHOOTINg TIPS

Symptom Probable Cause
Audio cycles on and off
Thermal protection engages when
amplifier heat sink temperature
exceeds 85° C (185° F) .
Loose or poor audio input .
Loose power connections .
distorted output
Amplifier level sensitivity set
too high exceeding maximum
capability of amplifier .
Impedance load to amplifier too low .
Shorted speaker wires .
Speaker not connected
to amplifier properly .
Internal crossover not
set properly for speakers .
Speakers are blown .
Poor bass response
Speakers wired with wrong polarity
causing cancellation at low frequencies .
Crossover set incorrectly .
Impedance load at amplifier is too low .
Battery fuse blowing
Short in power wire or incorrect wiring .
Fuse used is smaller than recommended .
Actual current exceeds fuse rating .
Amplifier fuse blowing
Fuse used is smaller than recommended .
Impedance load at amplifier is too low .
Speaker is blown with shorted outputs .
Actual current exceeds fuse rating .
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Action To Take
Make sure there is proper ventilation for
amplifier and improve ventilation as needed .
Check line level connections and repair
or replace as needed .
Check power wires and ground connections
and repair or replace as needed .
Readjust gain . Refer to the Adjusting the Sound of the
System section of this manual .
Check speaker impedance load if below (2 Ohms, 4 Ohms
min bridged); rewire speakers to create higher impedance .
Check speaker wires and repair or replace as needed .
Check speaker wires and repair or replace as needed .
Readjust crossovers . Refer to the Line Level
Inputs/Controls section of this manual .
Check system with known working speakers
and fix or replace as needed .
Check speaker polarity and fix as needed .
Reset crossovers . Refer to the Amplifier Settings section .
Check speaker impedance load if below (2 Ohms, 4 Ohms
min bridged); rewire speakers to create higher impedance .
Check power wires and ground connections
and repair or replace as needed .
Replace with proper fuse size .
Check speaker impedance load if below (2 Ohms, 4 Ohms
min bridged); rewire speakers to create higher impedance .
Replace with proper fuse size .
Check speaker impedance load if below (2 Ohms, 4 Ohms
min bridged); rewire speakers to create higher impedance .
Check system with known working speakers
and fix or replace as needed .
Check speaker impedance load if below (2 Ohms, 4 Ohms
min bridged); rewire speakers to create higher impedance .
© 2011 Polk Audio—all rights reserved

SPECIFICATIONS

Amplifier PA d4000.4
Type Bridgeable
Class D MOSFET
Channels 4 channel
RMS Continuous Power 125 W x 4
@ 4 Ohms
RMS Continuous Power 200 W x 4
@ 2 Ohms
Power Bridged @ 4 Ohms 400 W x 2
Distortion at Rated Power
<0 .1%
Minimum Impedance Bridged 4 Ohms
Minimum Impedance 2 Ohms
Not Bridged
Signal-to-noise Ratio 105dB
Frequency Response 20Hz-20kHz
Damping Factor >100
Crossover Filter Slope 12 dB/octave
(dB/octave)
Filter Switch (Front) 3-position
(HPF, Full, BPF)
High Pass Filter 20Hz - 4kHz
Frequency Range (Front)
Low Pass Filter 50Hz - 5kHz
Frequency Range (Front)
Front Gain Control 200mV - 6V
© 2011 Polk Audio—all rights reserved
Amplifier PA d4000.4
Filter Switch (Rear) 3-position
(HPF, Full, BPF)
High Pass Filter 20Hz - 4kHz
Frequency Range (Rear)
Low Pass Filter 50Hz - 5kHz
Frequency Range (Rear)
Rear Gain Control 200mV - 6V
Line Level Inputs (y/n) Yes
Line Level Outputs (y/n) No
LED Power Indicator Yes
LED Protection Indicator Yes
Supply Voltage 10V - 16V
Fusing & Power/Type (1) 40A (1) 35A ATC
Power Connections 4 AWG
Ground Connections 4 AWG
Speaker Connections 12 AWG
Height 1 13/16" (46 mm)
Depth 6 3/4" (171.5 mm)
Width 10 15/16" (277.8 mm)
Width w/ Terminal Adaptor 11 11/16" (296.9 mm)
Weight 5 lbs (2 .7 kg)
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