Shuguang 845B vs Shuguang 845M


Just popped an 845B and I was thinking of doing the 845Ms. Anybody with first hand listening experience or reliable second hand experiences? Thanks in advance, warren :)
128x128warrenh
How long does the 845B or 845M last? I was told they are not very reliable?

Cheers,
Kel...
Hey guys..Slipped in a pair of "B"s and have to say..I like them better than my metal plates. They are 90% of the transparency, just a dynamic, but warmer and to my ears are smoother in the highs..just a tad softer and sweeter over the metal's..Bass is just as good as the metal plates..no red glow on the plates. The B's have a higher plate disapation rating and a better suited to my Dared amp.

Im also curious as to tube life expectancy of the Shuguang 845's.
I've tried all the versions of Shuguang 845s. I like the 845Cs best. The 845Ms were reputed to have problems, but mine kept going for 2 years. The Ms and the Cs - both metal plate - have a similar sound, with the Cs being a little more transparent. The 845Bs are warmer and less detailed, and could be just the thing for toning down a system that's a little too much on the bright side. Cryoed 845As sound better than the stock version. They're bright by comparison with the other models - too bright for my taste - but could be good for putting life into an overly warm system.