I had the regular non amplified ones.
But I couldn’t use them.
ALL hearing aids will feedback when the entire ear is covered; no getting around it.
So the aids come out; (no earplugs either)
BUT I am practically deaf without the hearing aids.
Thus my question as to how much amplification the electronic ear protectors provide.
Will they amplify enough so I can hear the range instructor, but attenuate the shooting noise enough so I don’t lose what’s left of my hearing?
I'm not personally familiar with hearing aids; however if I were to design one, I would tie its gain control to the level of the ambient noise that the microphone would normally pick up. If there is no ambient noise (such as under earmuffs, or in a soundproof room) the gain is increased to the point that oscillations begin.
The other option of the designer is to use fixed gain, but then you need to have a way to program that gain into each device individually. They could do that too, for the price that hearing aids command.
But if my AGC theory is correct then a hearing aid *will* work under any electronic earmuff. It will work because it will hear ambient noises - lots of them if you use high gain (not necessary at the range, but quite pleasing in the field.) You will be able to hear range officials; but they often use amplifiers just so the shooters with passive earmuffs, or with foam plugs, can hear them too.
Electronic earmuffs are not expensive, and in worst case you can use them without hearing aids and still hear better because they amplify sounds. That amplification is not comparable to what a custom, prescribed hearing aid can do, but it will be better than nothing.
They say they don't allow noise above 82 decibals but it doesn't say how loudly they amplify. They're only about $60. Maybe you could buy some and experiment. Good luck.