Hello. I used to have a VK60 driving a pair of WP 6's. I recently went to a VK75SE. The VK60 can drive the Wilson's pretty good. The midrange is incredible, ditto for highs, soundstaging, depth etc. The bass isn't as tight as a higher powered solid state amp. Don't get me wrong, it's not bad, just more a tube amp sound. Before my Wilsons, I had a pair of Audio Physic virgo's.
My room is about 16x20.
My room is about 16x20.