Audio research LS25 any opinions

Knowing that interpretation of sound quality is a personal thing, I'll give my 2 cents here. I owned an LS 25, considered a mark II upgrade, but then a/b compared a MArk II, against the Ref 2 and a VAC renaisance. While the Ref 2 has sonic virtues over the LS 25, even with upgraded NOS tubes, the VAC literally outpeperformed the REF 2 in all categories. I have been a long time ARC fan (still am!), but there are formidible competitors with outstanding products!

i have audio research ls-15 and iam using a classe amp right now. I am thinking of changing to the vt-100tube amp would this be a good move?

I have just had my ls25 upgraded to the mk11 version, I was using nos tubes that made an incredible difference, I have not had the chance to evaluate them side by side but so far it looks like it's going to be a tight race. I would compare the two before doing the upgrade and keep in mind you are limiting yourselves to just stock 6h30's since I don't believe anyone else makes them, I did not think about the tube limitations before I had the upgrade done. just my opinion.

Gjc: What brand NOS tubes were you using with your LS25? What were the improvements over the ARC 6922's? Thanks

Gmorris email me for details.