Always run the positive wire on your speaker cables on the right side of you room, and the negative side on the left of the room. Then, run the power cord from your front porch outlet, around your garage and coil it 7 times around your water heater tank.
How much space between cables is enough?
I understand that proximity between power cables and interconnects or power cables and power cables is a problem, but is there a rule of thumb as to how much space is required to NOT be a problem. 1/2", 1", 6"? Also, are all cables the same? I would assume that the higher the current, the more isolation, but belief and reality are seldom the same.