Vac 200 IQ vs Ayon orthosII

orthomead, what speaker tab and output tubes used in the demo?  Try 1-2 or 2-4 ohm tabs?  Also roll KT150 if possible.

I suggest including ARC REF250SE to your list of amps.  There are many Agon members driving their Vandersteen's with ARC ... an excellent match.

If the VAC doesn't then give you that bass punch you are looking for, I would definitely go solid state.  Don't think any other tube amp will give it to imho.

VAC is not the only company that produces tube amps.   You can try running 2 200iq with KT150 in mono configuration, VTL, ARC and CAT.

If going with SS, Pass is probably down on my list for Vandersteens,   I would demo Ayre, Hegel H30, D'Agastino ... something more neutral.

There has been a T+A buzz so would contact audiotroy for info/demo.