If you can swing it, go with the Phi Beta integrated. I have heard this integrated with the VS at CES and Kevin and Albert use each other's equipment for designing and voicing. The Phi Beta blows away many separates; a friend in Scottsdale has one and the sound quality; dynamics, detail, musicality all easily rival my separate Phi 220's and Phi 2.0 pre amp. It is an absolutely gorgeus piece of equipment that has plenty of power to drive the VS. In fact, I think Kevin is building a Phi Beta 150 that delivers 150/ch.