psw120 auto power

sts2660
sts2660 Posts: 1
edited January 2002 in Technical/Setup
I bought a psw120 a couple of years ago I have recently changed my room around and i am noticing it never powers down.I also get some popping sounds when the receiver is off.Now the sub is hooked up to a kenwood reciever using a single sub out connection.By the way there are two computers and some hardware for computer networking next to it .Could it be picking up a signal from another source?