Warm sounding 6922 Type Tubes

My Tubadour 4 took 10 months to settle in.  That corresponds to advice I received about the output transformers.  They're apparently quite good once they're broken in which takes forever, at least 500 hours I'm told.  I got mine the end of October last year and it just this past month settled down nicely up top and boosted the bottom.  That's about 500 hours play time for me.  I suggest don't toss it just yet after eight weeks.  

+1 on the CCAs. I also bought the Mullards from Jesse, but I lost too much of the good stuff. The cca is so good, resolution without etch.

@wlutke Thanks for the info. 
 

@earthbound I forgot I purchased another Mullard from Brent Jessee in the past. This one clearly shows it as a Mullard ECC88 and the other was hard to read but the box said it was a 6DJ8  manufactured by Mullard for IEC. Even without much break in, the ECC88 is smoother and less bright than the other Mullard. They are both designated as a 1964 production type but they do not sound the same. So now with this other tube I can say I’m happy with the sound. 

I guess I missed it: What's a "CCA"?

@newbee As you recommended, I installed a JJ and it sounds better the Mullards. It removed the piercing extended highs but the overall sound is just as good as the Mullards. It has a nice soundstage and the bass is well defined. Who would have thought a cheap tube would sound this good. Thanks Ron