I am new to this forum. I have a Polk Subwoofer PSW12 hooked up to a Onkyo TX-SR702 receiver. I noticed today the bass isn't hitting as hard like it used to.
I tried turning the volume on the back of sub all the way up and there's bass coming out but is very subtle. I checked all the connections and everything is hooked up correctly. When I unplug the sub cable then plug it back in to the receiver, the bass sounds good when the connection from the cable touches the outside of the plug. I did a speaker test and the sub also sounds good, but during normal use of watching TV, listening to music and gaming.....it's like there is no bass at all. What's going on???
Any feedback would be appreciated.