Review on π Powerful 800W RMS 4-Channel Car Amplifier: Polk Audio PA D4000.4 (PAD4000.4) by Ryan Brunson
Buy another amp
Do not order this amp! The first one I bought had both front channels defective which led me to believe that the new speakers I bought were poor quality. Found out it was the amp, sent it back and ordered another one. This one has another bad front channel that plays intermittently. Sound quality is good and it delivers enough power to drive all 8 speakers, but obviously the build quality doesn't live up to Polk standards. Spend your money elsewhere. It's bugging me so much that I'll only deal with using 3 channels.
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