Interesting findings. I have tried JJ blue glass, VAC stock tubes and now some Golden Dragons. So far I think the best are the Goldn Dragons(I'm not sure of the vintage) but I have found that the VAC is the least susceptible to tube rolling of any amp I've had. It just always sounds fantastic no matter what tubes are in it. Don't get me wrong as there no doubt are subtle differnces but either the stock tubes are really good or my "upgrades" aren't really that. I have heard dramatic differences with altering 12au7's in other amps but not so much with the VAC.
Always interested to hear what others find though. I have seen some talk about the Valve Arts on AA. hmmm.... interesting....
Always interested to hear what others find though. I have seen some talk about the Valve Arts on AA. hmmm.... interesting....