The Dac I’m using is the Tubadour IV and previously I was using a MHDT Orchid. I purchased the Tubadour for the extra inner detail and more lively presentation. I do like the overall sound but I guess the extra extension and liveliness of the Tubadour affects my tinnitus more than previously. So I was hoping to reduce some of the liveliness with tube rolling but maybe it’s not possible. The rest of my system leans towards the warm side including cables so I rather not go there.
If the tube rolling doesn’t help, I may just buy another Orchid. Thanks for your responses.