I also own a VK200 with Virgos and this combo works very well. I am using a VK5i preamp and just sold my 3i which I mostly used with the VK200. This is a fantastic combo, very detailed, not harsh with great extension at both ends. The VTL 5.5 is a fine preamp, I own the VTL 2.5 but have never as yet match it with the VK200. Try a BAT preamp if you can, it may extend your enjoyment.
