Quote Originally Posted by jrhymeammo
Can you tell the difference in sound to speak of?

I recently switched my pre-tubes from JJ to Stock chinese tubes. My JJ were more crisp, but I found them to be edgy. And my stock tubes sound less exciting, while I consider them silky smooth.
My new GE JAN military 5670 tubes is night and day over the stock Chinese 6N3's as is my RCA 1960s 6BQ5 tubes over the stock EL84's.With these upgrades Yarland is very rich and dynamic with such a wonderful presentation.I got my tubes from Brent Jessee a super nice guy and very knowledgeable on the tubes he sells.If you want I have some extra Russian 6P14P EB tubes as well as some Russian 6N3P left over from people on head-fi.There probably better than your stock Chinese tubes.