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Siemens CCa vs. Amperex 6922 D getter

I have a Audio Note P3 Silver with a Dodd battery pre amp. The Dodd calls for a 6922.

The Amperex WL GP PQ D getter in comparison to the CCa in my set up sounds dazed and confused. It is like a dirty window that needs cleaning when I insert the CCa.

I had the Amperex three weeks before the CCa came on the scene. When I first put the CCa in the music seemed to jump out of the speakers with such clairity that I was shocked that the Amperex somehow lost all that info.

So much for MR. Joe's report on the 6922. In my system they rock. I must say they work better with the TS 6SN7 RP than the Sylvania W metal. YMMV.

Anyone else have this experence?
glory
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glory's avatar
glory OP
1,616 posts
 
D,

I think the 300b amp may help the CCa not to be so bright and hard on the top end. With the Sylavina WM 6SN7 the CCa had it's toes over the line at times. With the TS RP it behaved itself . The Amperex works better with the Sylvania WM bringing out more of the top end.

I will hunt one down (Valvo) and see, hear what you are saying is true.

Thanks for the tip.
rodman99999
6,206 posts
 
Siemens CCa's (pre 1968) are NOT the least bit strident, bright or glaring. Any system with a frequency imbalance/glare/sloppy bass/etc can make the very best tubes sound bad. That's just a fact of life. People that don't know any better will install a very transparent cable, interconnect or NOS tube in a system that isn't right to start with, and because the new component reveals a shortcoming in the system- blame the new component. I've watched those types chase their tails in this hobby for decades now. Of course- They're always right! Then again- SOME folks out there are teachable. Have fun!
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sherod
1,690 posts
 
I agree that the Siemens Cca( late 50's,early 60's) grey plates are very special tubes. In the right circuit in a resolving system, they are truly magical. Unfortunately, they are getting rarer and more expensive as time goes on.
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