I can give perhaps a glimmer of hope. With established tinnitus, when one has and infection, it really does get much worse. However, with me at least, it usually settles down to the 'datum' level again.
So consistent has this change been over the years, that I use the increase in noise to confirm any feeling of being off colour as being an infection.
I would love to have just a few minuets with my young ears to listen to a well tuned 9' Steinway. I suspect that I would realize just how much I'm missing, but the fact is that as I said, I can still get great pleasure from music. But, there's a but.
Loud noises make it worse, maybe for a day or two. Use the power of your system to give a full spectrum sound, but not one that will take the plaster off the walls!