Warm sounding 6922 Type Tubes

among modern production 6dj8’s the jj is a warmish sounding tube

mullards and brimars among old stock ones, as well as us made ge’s

re-reading the whole thread, if tinnitis is a serious issue for the op leading to great sensitivity to treble notes, this may be the best option

https://www.schiit.com/products/lokius?Finish=542&AC%20Adapter=544&gad=1&gclid=CjwKCAjwxaanBhBQEiwA84TVXADPhbd4GdXQSIQzWIcMqNpnPMkniH_2j_BIj9B5fxPq3uyRqmTCKxoChlYQAvD_BwE

i just don't see a tube swap in a dac alterning the sound character enough to make a real difference for someone with tinnitis

What’s a "CCA"?

this is an old stock euro grading of top tier 6dj8/ecc88 type tubes, usually seen in french dutch and german made tubes

these are very rare these days and command very high prices due mostly to their rarity (they sound very nice but not materially better than ’plain jane’ tubes from the period, so long as the latter are well matched and tested)

but if you want a pair of tubes that cost as much as your linestage, then these are the ones to get 🤣