Tube rolling 6922 tubes looking for transparency


I have a sunfire classic vacuum tube control center pre-amp that uses 3 stock sovtek 6922 tubes. I am looking to tube roll to a tube that is (reasonably priced) with a little more transparency and air! I tried tube valleys recommendation of Jan-Phillips low noise 6922 and it was more transparent and would have been perfect but apparently this is one of the pre-amps that has a microphics problem when using these tubes. Does anyone have experience with a (reasonably priced) 6922 that’s a little more transparent with a little more air than the stock sovteks!
darmike
I'm with Dave. I've owned, and sold three pairs of CCa tubes (the real deal, early
60s, grey getter variety). No matter what component I put them into, and I tried
them in about half a dozen components, they were always replaced with
something else.

I appreciate what they do, and they are indeed transparent...but they're not for
me.
That's the same seller (http://shop.ebay.com/member/?_frompage=findamember&_adv=1&_userid=audiotubes_de&_tokentext=383655&tokenstring=MqcnIwQAAAA%253D) that I've used for CCa's, 7308's and E188CC's. He's very reliable and scrupulous as a businessman. He used to have an online store, before selling on eBay. I haven't noticed him offering any CCa's lately though. Be certain not to buy any Siemens CCa's from the late 60's/early 70's. They are quite strident.
Some may consider NOS tubes expensive,but if you take in to account the reliability/longevity-they are a bargain.
I've had tubes that are dead in six months,the NOS tubes lasted for five years and were still going strong.
To my ears/IMHO/in my system/I've owned and sold/they are much better than.........

Go buy the Amperex / CCa Siemens and keep both of them and when you want a different flavor change them out. They are both outstanding tubes but with a different sound.