... bro, you're talking to TheLow. I know what it's been used and not been used on //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifwhats wrong with the 5200 motors? maybe the soft parts arent the best buy that 4hp motor has been used on the flagship woofer of soundstream, t3 audio, rockford fosgate, eclipse and i think a few others