AR does a very poor job of providing uselful info on the very many products it has sold over the years. Just try to get some info on all the different preamps and linestages from their website. It ain't there.
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.