Warm sounding 6922 Type Tubes

Whether on not a tube change will help when you have tinnitus might well depend on 1) the severity of your tinnitus, and 2) the frequency in which your tinnitus dwells.  A tube known for warmth might help but you won't know unless you try. I'm not familiar with the Orchard so I can't make a recommendation but if you have/can get and adaptor you might try the JJ I commented on above.  

@newbee I just ordered a JJ so I’ll see how it goes.

Glad to hear they are getting better. I too have tinnitus and have had quite a few tubes bother me in the beginning and then settle down. Happy yours did some settling in. 

I hope the dac situation works out for you. It is annoying and can be costly. I sold some brand new Zu speakers because they bothered my ears and caused headaches. Always a fear when purchasing new equipment. 

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.