Lizard King,

You should no problem using the VTL / 1070 combo. It justs depends how critical you are with surround sound. I started with the front mains then later worked on the center and surrounds because I listen to DVD-A and SACD recordings. When I had my front mains connected to the tube buffer and listened to movies, I didn't have a problem listening this way. Only when I decided to listen to DVD-A and SACD discs did I hear a difference in sound which prompted me to add the tube buffers to the center and rears. But that is just me. I suspect you will have a very good time with the VTLs powering your mains. Enjoy!