A quick way to see if your hum is from a ground loop is to plug everything into the same outlet(via an outlet strip, if you need). If it disappears, it was a ground loop problem, nothing wrong with the equipment. Then you can go to work on attacking the problem
Oh Pls Help
Just bought a pair of Monarchy Deluxe 100s Hooked them up to my speakers - no problem Hooked them up to my Pre amp (Cary SLP 94 Tube) - big problem Big I mean BIG hum on both speakers, music does play, although the hum is about as loud i usually play music at night Impedance problem? voltage problem? Polarity Problem? any suggestions