Alright if there is anyone out there who can help me I would greatly appreciate it. I bought a full surround combo on Newegg about a month ago and finally got everything set up. The speakers sound amazing but I cant get the sub to produce anything but a extremely loud hum. I'll give you all the useful facts that seemed to help others online let me know if there is any more I can give that will help.
I emailed Polk and they said probably a bad amp to switch it at the dealer but since I bought it in a combo I would have to take all my speakers down repackage them and the sub and ship it all back to newegg for a replacement which I imagine won't be cheap, so I want to rule everything else out first.
-The hum starts off loud and gets louder as I turn on the volume(like wake up the neighbors loud at 3/4s the way up.)
-I am hooking it up to a onkyo sr508 via subwoofer cable.
-When i plug it in to the wall with no inputs and turn it theres no hum, as soon as i plug the cable into it its there, even when the other end isn't hooked up to my receiver.
-I have tried multiple cables and multiple outlets.
-When it is on and the cable is plugged in, if I touch the other end of the cable with my finger the hum gets louder.
-I don't have cable tv.
-The sub power cord is 2 pronged and non polarized(tried flipping it in outlet, nothing)
Thank you for any help, I am really looking forward to hooking this thing up!