Using Audio Physic Yara floorstanders with Prologue I, and am really enjoying the combo. I auditioned the Prologue with Sonus Faber Concertos, which is a superb speaker.
Yikes I lost this thread! The 12AX7 will play the most important role. And don't assume you have to spend a lot of jack. It does not run any of the tubes hard. Suuuuper easy.
the 12AU7 tubes you can use tubes that are quiet but they do not have to be low in microphony. This means you can pop in some sexy Mullards Siemens Radiotechniques or whatever for low $$$$. You don't need the top grade.
On the topic of power tubes...was there any questions?
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