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Polk Audio PA D4000.4 (PAD4000.4)

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

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• 125 Watts RMS x 4 @ 4 ohms
• 200 Watts RMS x 4 @ 2 ohms
• 400 Watts RMS x 2 @ 4 ohms, Bridged
• 4, 3 and 2 Channel Operation
• CEA-2006 Compliant
• Frequency Response: 20 - 20,000 Hz
• Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
• Dimensions: 6-3/4" W x 10-15/16" L x 1-13/16" H

Learn more about the pad40004

We apologize

This item has been discontinued

Product Highlights


• 125 Watts RMS x 4 @ 4 ohms
• 200 Watts RMS x 4 @ 2 ohms
• 400 Watts RMS x 2 @ 4 ohms, Bridged
• 4, 3 and 2 Channel Operation
• CEA-2006 Compliant
• Frequency Response: 20 - 20,000 Hz
• Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
• Dimensions: 6-3/4" W x 10-15/16" L x 1-13/16" H

Description


Polk Audio brand icon

Authorized dealer

Polk Audio PA D4000.4

Taking the Polk Audio PA D Series Into the Digital Era

The PA D4000.4 is Polk Audio's new high-efficient digital 4-channel amplifier. This amplifier is perfect for providing the correct amount of power to a complete four speaker upgrade to your car audio system. The ability to bridge channels will give you more options on amplifying other applications such as subwoofers. This 4-channel can do amplify anything from high-end speakers to 4 entry level subwoofers.

How does Polk Audio improve on their already popular and very well known PA D series amplifiers? With technology advances, Polk Audio has taken their PA D series into the digital amplification arena. This means a smaller foot print, a super-efficient design which allows for lower power consumption and does away with a larger power supply. This allows the new digital PA D series amplifiers to run far more efficiently with lower distortion and cutting or clipping. The new PA D Digital series amplifiers are available in a monoblock, 2-channel, 4-channel, and 5-channel configuration making them accessible for any application. With a height of under 2 inches for all four configurations, these amplifiers also offer a mounting convenience making them practically perfect for any vehicle. All four configurations feature a 4-way protection circuitry and stainless steel hardware that will not corrode, giving the amplifier longevity and a sleek and stylish look. Polk Audio is a known and trusted company and with these new PA D Digital series amplifiers not only are you getting the high Polk Audio quality, you are now getting the quality in a very high and efficient digital range.

Product 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
  • 4 gauge OFC power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.
  • Dimensions: 6-3/4"W x 10-15/16"L x 1-13/16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
Check out the Polk Audio PA D4000.4 Owner's Manual Important Note: Early versions of this amplifier included a "Terminal Adapter". As of 2015, Polk Audio has confirmed that they are no longer sending this adapter with their amplifier, albeit referenced in the user manual. We apologize for any inconvenience, and suggest browsing our selection of "Gauge Adapters" if you wish to use larger than recommended wiring. Thank you!

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
125 watts x 4 channel
RMS Power @ 2 ohms
200 watts x 4 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
400 watts x 2 channel
Amplifier Specifications
Amplifier Class
D
Number of Channels
4-Channel
Total RMS Power Output
800 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
<0.1%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
20 - 4000 Hz
Low-Pass Crossover Frequency
50 - 5000 Hz
Signal-to-Noise Ratio
105 dB
Remote bass/level controller
No
Fuse Rating
40A x 1 and 35A X 1
Strappable
No
Sonic Certified Amplifier
Not Tested
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

PA D4000.4

Weight:

6.00lbs

Internal SKU:

pad40004

Internal Product ID:

39894

Product and How-to Videos


  • Polk Audio PA D1000.1 Class D Monoblock PA Digital Series Car Amplifier
  • How To Install an Amplifier: Car Amplifier Basics Part 2

Customer Ratings & Reviews



5 star
89%
4 star
11%
3 star
0%
2 star
0%
1 star
0%



Durability
4.6
Value
4.9
Features
4.9
Design
5
Usability
4.9

Customer Reviews

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great product!

I bought this item 6 months ago and cant complain! I cant say anything about the durability other than it still works great. All the power and settings you need, in one small amp:) love it! Thanks Sonic.

By espen on October 24, 2012

30

found this helpful.

Excellent little amp!

I picked this up about 6 months ago, to go along with the PA D1000.1 sub amp.

Pros: it's tiny, powerful and very clean sounding. Nice looking too.

Con: It's a bit more expensive than it's competitors.

If you have the money, do it. I love this thing!

By Jason on July 1, 2012

25

found this helpful.

This tiny amp will kick your butt!

Clean design, compact dimensions, powerful and clean sound. I'm happy with this purchase.

By Pierre on June 26, 2012

25

found this helpful.

WOW!

Just received my amplifier today and i am just downright impressed by this amp. The size of the 4000.4 is just amazing considering how much power it produces. Hooked it up to some infinity 6x9's and pioneer 4x6's and thought i was going to blow them! The sound was crystal clear, got insanely loud, and sounded a ton better than my old Hifonics 4ch. Another great addition is the 0 gauge power and ground adapters. Great to give this power hungry amp the power it needs. Was skeptical at first because i never bought anything Polk but in the end NO REGRETS at all! If 50 watts rms is not enough for your speakers, upgrade to this amp just be sure you have quality speakers.

By JManz on September 15, 2011

26

found this helpful.

So far so good!

Bought this for our river boat, it's installed in the bathroom(no moisture). Ran it in 123 degree temp full volume for an hour, never shut down and was not much above ambient temps. Very impressed...

By Lance Loader on June 24, 2016

8

found this helpful.

Great Amp and Service

This amp pushes my JL mx 880's very well. The amp does a great job and no issues what's so ever. Most of all sonic electronic is a great place to buy from.

By Justin on August 14, 2015

9

found this helpful.

Good little amp

Upgraded from alpine f240 amp this polk blows it away. Very small and pretty powerful so far

By John on August 7, 2015 Checkmark Icon Verified purchase

9

found this helpful.

Polk PA D4000.4

Love this amp always been Alpine fan but this is by far the best amp I've owned very very loud and clean pushing 4 polk 6.5 and a polk 10" sub
Very easy to hide also.

By Robert on October 14, 2015

7

found this helpful.

Money well spenr

Always been a fan of Polk, grew up with it and its also my home theatre system. After seeing thr PAD4000.4 i thought this would bbe a nice addition to my car stereo system. Install was easy and its really loud and clear. Love it!

By GenesisJewce on July 5, 2015

9

found this helpful.

A big bang for your buck!

I recently in stalled hertz components in my front doors and hertz coaxials in the rear doors and looking for a powerful clean amp to push these speakers without taking the last of my money.This polk amp was the one I needed.It's s/n ratio low distortion really pushes the hertz really well I'm very happy

By Ray on September 19, 2016

4

found this helpful.

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