My previous phono stage, good as it is, was holding this system back. When I recently upgraded from an Ortofon Cadenza Bronze to a Shelter Accord cartridge, it didn't improve the sound liked I'd expected - but I knew that the top-line Shelter should beat a Cadenza. So this weekend I received my new Herron VTPH-2A phono stage from Keith Herron - it immediately fixed this bottleneck, and suddenly I've got an even higher level of amazing sound pouring through my Stax - I didn't even think it could get this much better. WOW! I'm not more than several hours into burn-in of the Herron, yet. I've not even tried my best NOS tubes, yet (Mazda chrome-plate 12AX7 and Mullard 6201 12AT7 waiting on deck; Telefunken 12AX7 ribbed plates, Tele 12AX7 smooth plates, and Ei 12AT7 are in there now). Everything you read about this phono stage is true. The Shelter Accord and VTPH-2A is a stunning match, just like my georgep-built T2 amplifier is to the Stax 009 and 009S.