USED VINTAGE ADS PQ10 4-Ch Car Amplifier Power Plate Made in Japan OLD SCHOOL  Audio.  THIS WAS HOOKED UP TO MY CAR BACK IN THE LATE 80'S AND I LOVED THE CLEAN CLEAR SOUND THIS PRODUCED.  HARD TO FIND THESE AND ITS TIME TO LET IT GO.   THIS WAS HOOKED UP TO AN ALPINE DECK AND ALL CHANNELS TESTED ALONG WITH THE BRIDGE.  ALSO SELLING PQ20