Polk Audio PA D4000.4

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.