SKU: 67424091316

Polk Audio PA D4000.4 PAD Series 4-Channel Amplifier - 400W

Sale price$150.30 Regular price$167.00
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Description

Polk Audio PA D4000.4 PAD Series 4-Channel Amplifier - 400WPA D4000. 4 PAD Series 4 Channel Amplifier 400W When install space is at a premium, but your sound system demands plenty of power to realize its full potential, Polk Audios 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

PA D4000.4 PAD Series 4-Channel Amplifier - 400W

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.

Features:

  • Super-Efficient Class D Bridgeable Design - Runs cooler than conventional amps.    
  • High-Speed MOSFET Switching power supply. 
  • Front and rear level controls.
  • Protection - thermal, DC offset, reverse polarity and short circuit.
  • Nickel-plated wire terminals and RCA connectors.
  • Stainless steel hardware.

Technical Specifications:

  • Number of Channels - 4
  • Frequency Response - 20Hz - 20KHz
  • 2 Ohm RMS Power (14.4V) Per Channel - 4 x 200W
  • 4 Ohm RMS Power (14.4V) Per Channel - 4 x 125W
  • 4 Ohm RMS Power Bridge (14.4V) Channel - 2 x 400W
  • Signal-to-Noise Ratio - >105dB
  • Product Dimensions (with panels) (H x W x D) -1.81'' x 10.94'' x 6.75''

*Sold as an Individual

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.


Manufacturer : Polk Audio
Manufacturer Part No : PAD4000.4
UPC : 747192121938
Shipping Notes
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 67424091316

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Theresa C.
Omaha, US
★★★★★ 5
They Work
Husband struggles with cracking feet, he has tried so many home remedies these work great to keep the moisturizer on and the carpet dry!
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Reviewed in the United States on March 25, 2026
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raymond jones
Boise, US
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
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Reviewed in the United States on April 30, 2026
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Greg from MidW
Massapequa, US
★★★★★ 3
Does the job but dangerous to walk with!
Does the job but dangerous to walk with: foot is sliding inside the sock if the foot was treated with cream or lotion prior. It is uncomfortable to sleep with but a necessary hurdle to heal your heels!
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Reviewed in the United States on December 24, 2025
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Texgurl
Carnegie, US
★★★★★ 4
Does the trick
Bought it with urea cream for my senior dad who was diabetes. Careful with it, it will tear
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Reviewed in the United States on April 6, 2026
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Amazon Customer
Boise, US
★★★★★ 5
The really work!
Bought these or a friend with severely dry cracked feet. The change was significant and immediate. They wore them around the house for a day and that night they could already feel the difference.
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Reviewed in the United States on January 12, 2026

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