so I've turned everything off except the sub and receiver... and the hum is still there. so I tried changing outlets: plugged the receiver and sub to another outlet that had its own circuit (the fridge), and still there.
then I unplugged the receiver from that outlet and plugged it in another one and still there...
I'm about to throw in the towel!!
what about the vibrating subs? is that normal when power is on and connected to receiver?
okay, I just disconnected the cable from the sub and when I touch the cones there is still vibration felt(albeit quite a bit less, but it's still there.. the level of vibration seems to be related to crossover setting: 150 will vibrate more than at 100) but if I connect the sub cable it's much stronger with a louder hum... could that mean it's the sub then? because there is no power anywhere else in the house... The only thing receiving current is the sub.
