Warm sounding 6922 Type Tubes

If Mullard’s aren’t doing it I doubt another tube mfg. will.  Seems like you should be looking at either the DAC (you don’t mention the name) itself or another component in your system.

Why do dacs have tubes?

@earthbound The Mullards are starting to warm up and probably didn’t give them enough time to break in. I guess there’s no set time especially for NOS tubes.
 

The real problem is I have tinnitus in my left ear and it’s extremely sensitive to high frequencies so that’s why I lean towards a warmer sound. I can no longer listen to loud music without being affected. I should have mentioned this initially.

@ronrags Welcome to the tinnitus club. Sigh.

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