Harve,
Your adding another phi amp has put the idea of biamping my speakers with my unused 70/70. The VR7 are 96db sensitivity about the same as my speakers. I already have weight and power,but I'm thinking I would gain increased "sock" on the bottom end and added effortless extension on the high end. How did the biamping effect the midrange? Female vocals? Beautiful system btw.
Roger