tyler_durden Wrote: > You have a ground loop and no amount of power line filtering will > eliminate it. > > The problem is that the cable-tv coax is grounded at one loction and > the electric outlet ground is at another location. You don't need > something to isolate the sub input. You need something to isolate the > ground from either the sub amp (third wire on power line) or the coax > line. The sub amp ground is there for safety and should not be lifted. > The cable tv coax is another story. > > You need a 75 ohm isolation transformer that will break the DC > connection between the coax ground and your audio/video system. > Search for 75 Ohm isolation transformer and you'll find what you need. > Of course, if your have a satellite receiver on that coax you need to be > able to send DC to the LNA to tune the receiver. I think there are > isolating transformers that solve that problem also. > > TD
I am not an engineer so forgive me if I am misunderstanding...when I was referring to the coax cable I meant the subwoofer interconnect which I believe is a digital coax cable. Or are you saying that the coax cable my satellite tv receiver is hooked up to is causing a ground loop through my whole audio video system? the hum..The Hum..THE HUM! ack! -hal -- hal9000 ------------------------------------------------------------------------ hal9000's Profile: http://forums.slimdevices.com/member.php?userid=983 View this thread: http://forums.slimdevices.com/showthread.php?t=21315 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
