I upgraded my receiver quite a while ago to a Harmon Kardon AVR254. I decided to try and hook up my very old JVC sx-pw100 subwoofer to it. For some reason I can't get any audio out of it. it hums, but that's it.
I know it's easy to say just buy new sub, but hate to waste money and just throw it out. This is also for a room which isn't used very much.
I don't know a lot about home theater so please go easy on me. Any guidance would be appreciated!