Anybody own Audio Experience Symphonies?

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

Well I found out. Center 12AX7 is input and to outer one are for gain, Good to know if you want to mix tubes