Preamp 6922 tube help

I was thinking about changing the capacitor on the speakers, so far other things to make the system warmer, I didn't like. 

I was thinking of Jupiter Vintage Tone, I am running Jenzen Superior 10uf right now, and they are pretty flat sounding capacitors, which the tube tilts to bright. 

I removed the preamp from the linear power supply to make it sound warmer, I didn't like the sound of that. I might take the preamp off the isolation blocks. 

Called Andy he recommended two tubes to try 

Amperex Mids 60s A Frame 

and 

Telefunken West Germany. 

What does he mean when he says a tube is dry sounding? 

I am really looking for a tube that has a high sense of realism in the presentation. The CCa did it for me if it wasn’t for the listening fatigue, you heard every pluck of the strong, the bass was nice and tight, voices was clean and clear. In my experince tubes that have a high sense of realism were also very accurate in recreating tones. 

Here is a little about my gear.

I have a Mirus DAC, I would characterize the dac as being very aggressive with details, if it wasn’t for a preamp tube stage, it would be too much for me.

For preamp I use a Pathos aririum, I would say this preamp tries to enhance the sweet spot for all tubes, all tubes sound great on it, unlike some preamps, that sound terrible when you put in some not so great tubes.

That is pretty much the combination that I like, in terms of balance of sound that I like. The tubes really soften up the dac.

The rest of the chain is a solid state amp from audio source and run a set of ADS L620, the speakers were also recap using Jetezen Superior, which retained the qualities of the speakers. I also run a pair of subs.

The speakers are two way, acoustic suspension design. I find two ways even though it lacks detail, compared to systems with more drivers, creates the best imaging. I also like the sound of paper woofers, for the tonal qualities they produce. They are also one of the more non fatiguing speakers, because I listen to music about 4 - 6 hours daily, sometimes 8. I also listen to music about 60-70 db most of the time, and when I am feeling it push it to 80-90db.

So that is how my gear is assemble to produce the most natural sound.

The CCA are really great tubes, and I think I will still keep them, but I just can’t turn them up all the way up. They work well at low levels and I can listen to them about 2-3 hours a time, before fatigue sets in.

Prior to the CCA my favorite tube was the telefunkens, they were razor flat in presentation too, but eventually I didn't like the rounded out bass, it didn't sound natural to me. The CCa now have issues on the other direction, I love what it does to instruments that reach highs, really give strings that sizzle, but my ear's can't handle them for extended periods. They do sound magnficent for the 1-2 hours i listen to them for. 

So for power I found power supply with some type of toroidal transformer to be cost effective enough, the preamp has a lps, and the people who design my dac went really far and wrote a white paper a few pages and talked about the effort they put to clean the power. 

The issue pretty much goes away with a switch of tubes. I'll try to change sources and see but I'm pretty sure it's the tubes. 

I got some tube recommendation and ill give it a try. 

I should also note that the dac is aggressive not in tonal qualities but just sheer amount of detail it is able to retrieve. It sounds like hd tv would, you see eveything but it in an artificial way. The tubes blend the sounds together to one coherent sound. If I bypass the tube stage and just dac to amp I don't have the issues.

I was able to get a set Matsushita/National 7DJ8. Since it got so many recommendations and very reasonable priced. 

I want to say it did solve the issue of glaring highs that I experince. The first thing that hit me about the tube is that nothing stood out. The highs were clean and the lows were tight. It is defintlaty a good tube. It might lack the "magic" distortions that some of the other tubes are known for. Sometimes that magic leads to fatigue, or just draws too much attention to themselves after extended listing.  But there is no fatigue that comes from them, they are at the hint of warmth. They are what I am looking for and might end my search. 

The bass is not as quick and clean as some of the tubes I've tried, but I think it gets the balance of what a tube stage should do, to add back a sense of naturalness to the music. Very intresting indeed.