Yes, VS speakers work very well with the right tube amps. One of the best systems I've ever heard had VR-7 HSE speakers with mono BAT VK-150SE mono amps. A number of local audiophile friends use BAT VK-75SE amps with VS VR-4 SR and/or VR-5 HSE speakers. Before the BATs I know they had Cary amps. I have personally used Quicksilver V4 amps with VS-4 jr speakers for a while which seemed to be an OK match - I kept the amps and sold the speakers - feel free to read into that what you want :-) As with most things in life, the higher quality of amp you can afford the better. For instance, I've heard VS speakers sound nasty with some cheap Chinese tube amps being used.
