Finally I am in possession of Lyr (for the 2nd time ;] )
newest revision is "C revision" (don't know what are all the changes, for sure some transients protection when on/off)
(I had a Lyr in the past but needed to sell it - personal reasons)
Like in the past - Lyr out of the box sounded totally uninvolving and 2d + a bit muddy, losing a lot of details comparing to pure transistor amplifier (but I was familiar with this)
All it needed was a few sessions for about 5-6 hours to sound amazing, out of this world holography, bass, texture and harmonic informations, layering and separating, depth and width, saturation and punch = top notch
And short summary about the tubes:
I was shocked after trying 6n23p (russian rockets - rocket logo, even from 80s - great sound, bought matched pair of NOS for 10$, can't believe it - in my audio chain they sound very similar to very expensive siemens I tried once in the past)
6n23p tubes were the best (tried stock 6bz7, philips jan 6922, new EH6922, amperex buggle boy, 6n1p from Schiit - EH6922 were my favourite in the past - I tried to make Lyr detailed but kept smooth and relaxing sonic sound signature with great punch when needed)
6n23p is the most balanced, linear, detailed without being harsh (not losing so many musical informations like other tubes), emotionally engaging tube so far, the tubes needed only about 10hours to start singing and amaze me