Advice on an upgrade

What am I missing by stayin away from monoblocks?

dennis, in your original post on your disappointment with the BAT you mentioned that you were hoping for a warm, organic sound. you may recall my comments then. nothing has changed much in my opinion. i think the ML's can sound cold and etched if not properly driven. i think you may find synergy in looking for tube or ss amps with high current delivery which are reputed to be on the warm side of neutral, for example Conrad Johnson. Of the amps you have referred to above which i am familar, i don't think that you will find that they will warm up your system, especially the ARC, Mesa Barron, VAC's and VTL's which require very netural systems to sound best. mono's are not necessarily any better for your needs than stereo amps. i don't think you need really high power in an apartment. were i you, for reference purposes i would borrow an amp reputed to be warmish and put it into you system for a few days and see if that is a possible solution for you. you'll at least see what the differences are between what you have and a "warm"amp. good luck.

Would a Conrad Johnson be an upgrade from my current VTL integrated? I actually am surprised you say that the VTL isn't warm, because to my ears, compared to my old NAD integrated, it's a lot warmer, and much more "unveiled" or open sounding. I'm considering the VAC 70/70 more seriously, partly because this seems more of an upgrade, and also because it's a duo mono on one block, and i like the look of an open tube chassis... !

dennis, i have no doubt that the VTL intregrated is warmer than your NAD with these speakers - i would think the NAD's were never a proper choice for them. that doesn't mean in any absolute sense that they have a warmish tone - that effect has everything to do with the speakers they work with. You must think of the speakers and amp synergy - next to your room and placement this is of prime importance. there are a lot of conrad johnson models about - they all sound different to some degree - the tube models are usually warmer than the ss - all would be an upgrade IMHO. but thats not the point, from my view its the sonic signature of a warmer amp you want to hear so you can decide which direction you want to go, then pick the exact make and model. CJ just came to mind as an example of warmish amps that don't compromise a lot on providing you with detail etc. however, as a practical matter, they have some highly regarded models that are easy to use in that you can change and bias the tubes yourself when this becomes necessary, therefor are much cheaper to maintain and experiment with. you must have a cj dealer somewhere in DC you can get a loaner from. i would try to get the 11a or the cheaper 55 just for a peek. have fun.

Synergy over price/reputation. I understand that. I'll look into CJ auditioning possibilities. Thanks.