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Looking For Candidates For That Mythical 6922 Tube

I have spent a bit of time looking at 6922 tubes for a PS Audio BHK 250 Signature. I currently have two tubes that work relatively well, but really are not exactly what I need. 

So far it has been a pair of Siemens 6922 Gold Pin branded under RCA. Or a pair of Telefunken 6922. 

The Siemens have nice space, and a rich mid band. However the top end does not have the clarity and energy I would like. The Telefunken are more extended, but are lean in the upper mids, and have a bit of a threadbare feel. 

I have used Amperex Bugle Boy Holland and Orange Globe. I have tried some tubes from GE, Sylvania, Tungsram, and new Gold Lion. Nothing else betters the two I am currently using. 

Anyone have any recommendations that strike a balance between the Siemens and the Telefunken? I have read a bit about the Reflektor 6N23P with silver shield from 1975 as being a desirable tube. Any thoughts?

Any info you can pass along would be appreciated. 
neonknight

Showing 3 responses by lowrider57

lowrider57's avatar
lowrider57
5,418 posts
 
Siemens 7308/E188CC; the CCA if you can afford them. The 7308 are premium 6922 tubes.
Telefunken are very linear tubes, the midrange will not have any emphasis or warmth.


lowrider57's avatar
lowrider57
5,418 posts
 
Regarding Amperex, I agree with @three_easy_payments that the premium tubes are way better than Bugle Boys. They were manufactured in both USA and Holland and are called 6922 Amperex PQ. Liquid midrange and an extended yet smooth top-end, it’s a lively tube.
Also, there's the 7308 Amperex PQ Holland, having more slam and a fuller, less transparent sound. As I said very lively tubes, but do not have the high-end energy of Siemens or Telefunken.

lowrider57's avatar
lowrider57
5,418 posts
 
Well then, Amperex and Mullard are out; they reveal lots of textures.
IME, the 7308 Siemens West Germany would be worth a try. And with Telefunken, there is a difference between the smooth plates and the ribbed plates.


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