In the process of upgrading my TV, I ended up getting a new Marantz A/V pre-amp and elected not to hook up rear surrounds for a couple of reasons. One of those reasons was to bi-amp my Vistas off of a Primare amp. Now I want to add back the rears (will upgrade to M-L LX 16s) to go with my M-L...
All of the sudden, one of my Vistas started having a buzz similar to a ground loop buzz. The problem is not the AC outlet; I unplugged it and then plugged into another outlet on the Panamax.
The buzzing only stops when the speaker cable is unplugged--either at the speaker or at the amplifier...