Anybody own Audio Experience Symphonies?

I bought the symphonies (not +) 2 years ago and while it sounded great, a local tube gear builder said it leaked DC current - my classe amp kept shutting down. Having said that, it worked with a rotel receiver which did not shut down. It had the cheap EI tubes which I recommend replacing. Build quality was great for price.

I have used Symphonies (not +) with Classe CA-100 amp for almost 1 year. Its performance is excellent. Wide soundstage, deep low and mellow. I’m now considering upgrade my system to Symphonies Plus or BALANCE A1.

The website says they corrected the 'dc leak' problem...never heard this equiptment but was checking their info and thought I would mention they are aware and claim to have fixed that problem.

I just bought a Symphonies plus preamp,I am curios to know how did the new tubes (groove tube 12AX7M) work out?? anybody own the plus model? what do you think about it? J.C

Can anyone tell me what each 12Ax7 does in this unit? Is it like the Minimax ? 2 each for gain one for tone ? If so which ones
Thanks in advance