I've had a VAC Standard LE and didn't find it "tubey" at all. In my system, I directly compared it to a $10K Thor pre and the VAC at 1/2 the price won me over. Excellent detail, imaging and most of all, musicality. High quality build and excellent support from VAC are the icing. The Renaissance sound like the best fit for you, as others above had mentioned. Good luck.
P.S. - I now have a Phi 2.0 pre and a Phi 300.1 amp on order.
P.S. - I now have a Phi 2.0 pre and a Phi 300.1 amp on order.