Just wanted to let people know what great repair service I received from Rocksford Fosgate. I had my Punch 400a start breaking up really bad on the rear channels this past winter. Finally got around to getting an RMA from them and sent it in on 4-11-03 (After checking the calendar it was 4/18/03). Received it back today and installed it. Works and sounds great!!! Best of all it was repaired under warranty.