I've got a pair of the Phi 200 monoblocks. Just wondering if folks have experience rolling 6SN7's in these wonderful amps? I've got a bunch of 6SN7's, and I am just about to start testing them all. I know that one should match the inner pair (between the pair members) as well as the outer pair. But I don't know if the VAC 200's use both triodes in the 6SN7 or only one. Anyone else have applicable knowledge here? Also, which 6SN7's have sounded best in Phi 200's?
PS - I do hear that the stock tubes are supposed to be quite good.