I’m maintaining a project to quantitatively rank (via a proprietary algorithm) ultra power hearing aids as to how powerful they really are and how well they handle the frequency range (a fancy way of saying “high fidelity”). Ultra power, for this purpose, means a peak output of at least 140dB SPL in real ear simulation. The working theory is the better the bandwidth, the better the perception of sound quality, especially in terms of music. Qualitative user experiences tend to support this. Secondary features such those targeted towards “speech enhancement” do not play a role of any importance in these ranks. If you suspect you may care about such features, then please discuss such with your audiologist so he/she can “value add”.
I have made about a handful of exceptions to the above rule for noteworthy hearing aids and have identified them with “Natural Sound” in the notes. I’m fully aware that “mission creep” is starting to occur as the industry responds with improved hardware, but that should not be viewed as being on the road to a comprehensive ranking of all hearing aids in existence or ever produced (sorry!).
If you know of any other digital or analog ultra power aids and have the technical specifications for such, please PM me and I’ll add it to the list.