Amplifier suggestions for Von Schweikert VR4 JR


I'd love some input and suggestions for amplifiers for
VR4JR.
I've seen them at shows powered by a 15K Tube integrated.
Is anyone getting tube like warmth and dimensionality from
a solid state amp system?
Musical tastes.....everyting. Rock, Jazz, Vocals, Classical.
Thanks
Jim
jdolgin
I use a BAT VK-200 to power my VR4 JR's and am very happy with the sound. I use a tubed pre-amp (VK-3i).
I drive VR-4JR's with BAT-75SE and with Thetareadnaught II before that. BAT is a better match in my system.
I am very pleased with my Bel Canto M300s driving my VR-4 JRs. Talk to Wally at Underwood Hi Fi about these. The S300 is slightly cheaper, all in one box. Great detail, non-fatiguing, and wonderful mid-range.
Thanks everyone for your suggestions.
Has anyone bi-amped the JR's with tubes for the mid-tweets and solid state for the bass?

Has anyone switched from transistors to tubes and vise-versa? What did you observe in the switch?
Thanks again.
Jim