Originally Posted by mx711yam
so a few weeks ago my sub would start making a terrible noise and I had to move the cable a bit to stop it. Now the sub just makes the noise and doesn't play anything else.. I changed to two different cables so I'm guessing its the sub or the receiver. Anyone with feedback I would love to hear!
Are you using a Y splitter? If so, try bypassing that and see what happens. Does the sub have LFE and separate low level (RCA) connections? If it does, try using the connection type opposite of what you're using now. It could also be the connector has some oxidation. Try plugging and unplugging the cable from the sub 4-5 times, twisting it a little each time. If there's some crud on it that might be enough to clean it off. If that does work then it might be a good idea to use some electronic contact cleaner to do the job completely.
More than likely it's the sub though, and not the receiver or cables, so the above may not be all that beneficial.