I have Winged C's KT 88's & Mullard 6201's and 12AX7's in my Response Audio Reference Jolida 502A, and a Mod 2 Jolida JD100 CDP also from Response Audio, which I highly recommend. Bill Baker does some remarkable mods to these units. Its just the price on these NOS tubes that are breaking me. looks like I'll be checking out Sylvania's.
thanks!!!!! also, what can you tell me about cryo treated tubes? are they worth the big bucks?