Audio Research comparison


I'd still like to get an un-biased comparison of the old Audio Research Power Amps: VT100 MkII, VT200, REF300 and the newer solid state input versions. I have heard opinions, but they have all been self serving. So I'd like to hear from someone who has really compared the two designs. Also I'm interested in the comparison of the new pre-amp designs with the older ones LS-25 Ref2 with the MkIIs.
blues_man
I have a pair of the new REF 300 MKII's. These units are FAR better than the original 300's, and in my opinion any of the 600 versions. The changes, including a change in tubes, makes this one of the best sounding tube amps out there. Haven't heard the ss AR's. AR does seem to have a propensity to frequently upgrade models, I can see how this may irritate some, but in the case of the 300MKII, what they've done is certainly an improvement.
I understand that there is a VT200 MK2 available. Has anyone auditioned one? How does it compare to the original VT200?
Blues_man:

A RefII and VT200 is an awesome combo. Why would you want to upgade?
Another approach to ARC's philosophy....when making substantial upgrades they keep the customer informed, whereas with BAT you do not know which iteration of their product you are purchasing. Does this not make ARC's products easier to price on the resale market ?

I have an SP9 Mk II, which I have owned (trouble-free) for the last 10 years, and am lusting over the VT100.