Siemens CCa vs. Amperex 6922 D getter

08-03-08: Rodman99999
Siemens CCa's (pre 1968) are NOT the least bit strident, bright or
glaring

They CAN be VERY close to being so. SOME
listeners might even perceive them as being bright.

I've heard it in a couple of systems that have been VERY carefully dialed-in.
The users decided to uninstall the CCa tubes.

Now, if CCa tubes are too high performance for many to to deal with, then
this should be a VERY strong caution signal for many potential buyers.
Ferraris are great cars, but they're not suited to most drivers.

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.

Mr T- You are correct about the "taste" factor. That's why I always preface my recommendation of the CCa with a note about their clarity and transparency, and mention the fact that some might prefer a "warmer" tube. Another possibilty is badly recorded source material. I've had just a few discs over the years that were obviously mastered on monitors without tweeters(or by a deaf engineers), the highs were so exaggerated. I've got one right now that I really like the lyrics on, but won't play on my system because it's recorded so poorly. I only listen to it in the car, with the treble turned way down. Mr S- That's why they(and the E188CC/7308) are so stinking expensive and rare now: In an accurate, resolving system- they just get out of the way of the music. Obviouly there are a lot of us that enjoy that attribute. Happy listening!!

...would like to thank all who suggested the use of the s & h cca's..i replaced my tubes in my first sound pre with 2 of the 'cca's' i had laying around..1960's version.. and my system improved several notches in a number of ways...again..thanks for the post

Enjoy your music Mr C!!