VAC Preamplifiers


I am very interested in VAC preamplifiers to replace my GamuT D3i. I am wondering how much better the upper tier VAC preamplifiers are than the VAC Renaissance mkV with phono. Perhaps VAC owners can assist me....topology appears near identical throughout the line, so it must relate to parts quality and power supplies. Thank you!
normie57
Thanks for your informative response three_easy_payments! I also read a review of the VAC Master which compared the Sig IIa SE with the Master. Although the Master proved superior, it was not striking according to the reviewer. So, it certainly appears that the Renaissance mkV is the best bang for the buck. 
Any VAC owners fortunate enough to move from Renaissance mkV to Sig IIa SE or Master Preamplifier? Would really appreciate your opinions.....thank you and stay well!
We are big VAC dealers and local to the factory, so we get a chance to play with all the great VAC preamps.  IMO, the Master is the one to strive for.  It’s close in performance to the Statement, at 1/3 the price.   When upgrading customers from the REN MkV, we let them demo a couple and all have selected the Master.  
Thanks for the perspective @suncoast_audio .  Now I have an upgrade to strive for somewhere down the road.