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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
tvad
9,467 posts
 
Which tubes "rock", which tubes "are like a dirty window", and which tubes "sound dazed and confused"?

No disprespect, but your syntax is confusing.

FWIW, in my system neither tube had the negative characteristics you described. Maybe you procured a bad pair.
glory's avatar
glory OP
1,373 posts
 
The Amperex sounds dazed and confused and the CCa makes the Amperex sound like a dirty window that needs to be cleaned. The CCa has much more clarity than the Amperex.

I don't think the Ampeerex is bad as it sounded great until the Siemens came along.

I have a pair of Amperex 7308 coming from Andy (going on a 30 day wait) that will be interesting to try out.
tvad
9,467 posts
 
Thanks for explaining. That's what I thought you meant, but I wanted to be
certain.

In my system, the Amperex had a SLIGHTLY softer top end, and a SLIGHTLY
more diffuse midrange than the CCA, which in comparison had the precision
of surgical steel.

Now, everyone's interpretation of these differences varies, and what I
consider to be slight, you may consider to be extensive.

Also, to me what you describe seems possibly attributable to microphonic
tubes.

Or, it could simply be due to differing perceptions.
jerrym303
54 posts
 
I compared several tubes in this category in my Dodd battery preamp and found the Amperex 1960's white label and Seimens 1960's CCa's to be the two best. Between the two, I much prefer the CCa's.

In my system the CCa's have much better texture - just sound richer without giving up bass slam or top end. Dynamics are great, also.

I tried a couple pairs of both, so I got some diversity there. I do plan to keep a pair of the 7308's around to change things up once in while.
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