Pull the speaker cables out of the binding posts on the speakers and change places. The speaker cable that used to go to the right speaker now goes to the left. And the same thing for the other one. Don't touch the other end of the cables that connect to the amp. Play some music and see if the problem moves to the other speaker, or stays where it is. If the hum still comes from the same speaker, that's where your problem is. Otherwise, its something else in the system. Do that first and then post back. The overall idea is to isolate each piece in the system, one at a time, so you can confirm if it is or isn't working properly. You just keep eliminating components until you come across the bad one.
Hum in one speaker?
Hi, ive been having this hum thats been comming out of my right magnapan speaker. Well first thing is that my whole system is on the right side of the room and the speaker is right next to the equipment but its been like this for years and I never had a hum before. This seems to happen when using the turntable but only with certain albums that have been recorded at a low levels causing me to turn up the pre amp past 12o clock. Recently I put my speakers on mye stands with magic sliders and I dont know if that may have caused an issue or mabey its a bad vaccume tube? I tried moving the speaker around the room didnt seem to do much but the hum seems at its worst at the best listening spot (go figure). Mabey its my cartridge? I dont know but right now my turntable is about 30 inches away from the speaker. The hum is not horrible but when the music gets quiet it can be annoying. I did swap the speakers and with the tweeters on the outside the hum seems to be worse not better.