As suggested above, you need huevos. Esp, to get orchestral dynamics and to couple the P's with the W's on the V. The best results (caution: to my ears) with WP 6's were in descending order, Atmasphere-2 (as above), Lamm, Ref 600, Mesa Baron in pentode mode.
Don't know if this helps any.
Good luck!
Don't know if this helps any.
Good luck!