Consonance Cyber 800/845 Valve amps; how good?

Workmenship within is good but parts are just okay, if they are real rather than copies.
Tbg

What does this mean..."if they are real rather than copies"?

I do not know whether the caps are really made by the company whose name is on them. Few Chinese products use parts other than those made in China and are often forgeries.

Thanks, Tbg. Would you mind specifying what company name is on the caps you question?

Rubycon.

bartokfan i was referring to the cyber 800s if you need plenty of power. they seemed to be unflappable to beyond volumes i can bear or enjoy. the 300b is pretty much acknowledged as the finest triode and i have to agree overall even though i prefer the 845 personally. the 300b requires an awful lot of careful matching with other components due to the low power and its behaviour at the frequency extremes and nothing i've found (or could afford!) in the last thirty years has enabled me to be completely happy with this valve in my system. in the end the music is what i care about and the 845 is simply far more speaker tolerant and has weight, authority and control (especially in complex full orchestral passages) whilst still providing a very large chunk of the best of s.e.t. (i.e. 300b). it is a difficult valve to design for however which i assume is why there are not that many worthwhile amplifiers featuring this power tube.