I noticed that we developed the condition around the same time as well. I woke up one day with my left ear feeling "full", ringing, and reduced hearing. It's been like that ever since. My tinnitus is around 500Hz, so it's lower frequency, like my hearing loss. I tried on the Widex Unique as well, and was about to pull the trigger on it and then tried the Oticon and it just sounded so much better to me. I'm picking mine up tomorrow. I hope I wont regret it and wish I had gone with the Widex. Just based on some of the information they've published and videos on the subject, Oticon seems to understand low frequency loss and I was very impressed with their initial settings based on my Audiogram. They very much followed some of the latest recommendations for low frequency loss settings and they sounded amazing even with the default settings!
Honestly, I don't know much about Tinnitus Retraining Therapy and will look further into it. For now, I've been gritting my way through the constant siren in my left ear, trying hard not to focus on it. It's been rough. What I found when I tried the Widex and Oticon's on was that with the increase across the range, my tinnitus seemed significantly better. I'm hoping that feeling continues when I wear it full time!
I want to continue to learn more about TRT. I know low frequency loss is pretty rare and unique. I'd be interested in keeping in touch to share what we're learning.
Best,
Brian