I’d really appreciate it if you would be kind enough to try some of the tips you have on hand. Even if you don’t know the model, if you find some that work and can take a pic of them, I’m sure I can track them down and order them.I have a few spinfits I can try and let you know. I'm not sure I can find the exact model of them though. I prefer things to work "out of the box". There is a big difference in the sound between the 75t and 85t. The 75 being much warmer. I do believe when people state that the 85t have a more true or balanced sound, but that kind of thing doesn't matter to me if I don't like it.
I'm starting to suspect my 85ts are not working properly, I can detect some white noise in the right ear and lots of speaker flex when switching between anc modes.
What size of the stock tips are you using now?Are you able to tweak the sound a bit more to your liking by using an equalizer. Some of my true wireless buds have terrible low end sound and I’ve found a great iOS EQ app that works seamlessly with Spotify (which is my main source of music) and has a million features, including importing external music for playback.
Sorry to hear about the issues you’re having with the 85t’s. Did you purchase them locally whereby you can exchange them for another set or do you think you’ll just return them?