Unlike more traditional HAs that offer many different programs, the OPN can be set with just one program that should be good enough for all situations. But it can be set to hold multiple (4?) programs if you wish, just not necessary. I’ll explain why later on below.
You said you’re using open double dome but I don’t really think you mean open as in having big vents on the domes. I think you’re talking about the power dome that has 2 domes stacked on each other without any vent at all. Based on your audiogram it seems like it’s most likely either that or customer molds (with no vent). That plugged up feeling you have is due to the occlusion effect due to no vent. You didn’t say what kind of HA you wore before, but I’m a little surprised that this plugged up feeling is new to you, because with your hearing loss on the low frequencies, I would have thought that you’d already be fitted with something with no vent, so you wouldn’t be a stranger to a sealed fitting already. But maybe whatever you wore before had some vent. You can try the bass dome with a single vent to help reduce the occlusion next time you see your audi. But I suspect a custom mold may work best for you, especially with your right hearing. I assume that the audi probably fitted you with a 105db receiver (or something even stronger if available) on your right ear already, because the 85db receiver is no match for that loss.
Not sure why you feel like lacking bass on the OPN. Probably something your audi can crank up a little more in your next visit. It may be that your previous HA had the bass cranked up so you’re used to more bass? It can also be the road noise while driving that’s masking the low ends for you. How does it sound if you just listen to music at home in a quiet room with a good pair of headphones that has good bass? Does it work better in that case for you?
If you’re used to noise reduction from your previous HA, the OPN doesn’t do noise reduction of ambient noise (like road noise, engine noise, fan noise, etc) like traditional HAs do. The strategy of the OPN is to let you hear all sounds, and your brain will eventually adjust and know what to tune out and what to focus on. But it’ll take a while for your brain become adjusted to that (maybe a month or two or more, depending on how often you’re exposed to noise).
That’s great to hear.
Like I said above, you don’t need multiple programs with the OPN because by design, it lets you hear all sounds around you (noise included). It does have noise reduction but on speech only (which is a very different kind of noise reduction to help with speech clarity), so this implies that ambient noises (like road noise or engine noise or fan noise) are not speech, so the OPN does not apply noise reduction on those sounds. Its philosophy is that your brain hearing will eventually learn to tune out what you don’t want to hear, so that’s the “natural” noise reduction your brain hearing will do for you. That’s how normal people hear selectively anyway. Per this explanation, program P4 for the car is not necessary.
The OPN actually does offer a directional mode that you can turn on for noisy environment, but if you subscribe to its “open” paradigm and let you train your brain to adjust and learn to tune out noise, then the directional noise reduction mode P2 is not necessary.
Because the OPN does not suppress/process sound for noise reduction, the general mode is just as good for music listening so program P3 for music is also not necessary. The OPN lets you hear everything all around you all the times anyway, which is what the music mode in a traditional HA does pretty much.
So now you can see why with the OPN, only one program P1 is good enough for all environments. Sure you can add P2 for directional since it IS available, although not necessary, but still nice to have. If you want max noise reduction (again, OPN’s noise reduction is applied to speech ONLY), you can either set that on P1 by default, or you can have another program like P3 for that, although I don’t see why just have it set in P1 already.
You’re correct that Autophone does not need a preset. The TV Adapter 3, once paired with your OPN, will install a TV mode of its own on the OPN, but you’re right that your audi does not need to add a program for it.