Greetings from London. I have had a REL sub for years, and an ongoing problem. The high-level connection cable picks up hum. If I move the cable to in a position that is not in fact convenient (i.e. across the floor), then it's fine. But put the cable where it ought to be, and there is a persistent hum, annoying if the sub volume is raised. The cable is in fact longer than it need be. I've checked the connecting plug at the sub end. Would shortening the cable (which I could do quite a lot) make a difference?
REL subwoofer hum from high-level connection
- Thread starter timauger
- Start date
Not really coiled up - more gathered up together in an unholy tangled mess. Not laid out straight, that's for sure.
Update: I shortened the cable drastically, so that it has a more-or-less straight run to the sub, which does seem to have done the trick. Later I did check the connections: in the high-level plug at the sub end the earth connection needed tightening up which was worth doing anyway, but in fact that didn't seem to be the source of the trouble. It's interesting that the excessively long speaker cable could pick up such interference: there is no such reference on the REL website, or their trouble-shooting advice, and yet it is such a basic thing. I wish I had known about it a long time ago. @Riotvan: the cable did come close to the power cable, and still does, but I have always kept them as far apart as poss.