Who cares? Why would hearing loss affect my ability to hear differences between speakers or amps or dacs and prefer one to another? I hear what I hear. Whether it’s the same as what someone with “perfect hearing” hears doesn’t matter.
That said, I know I’m better at listening and pay more attention than the average person. I’d say my perception is above average.
I have a good friend who is a professional jazz violinist and his hearing isn’t great but he can hear things in music I’ll never hear. He knows exactly what instruments are playing and can transpose it into sheet music or pick up his instrument and play each part for you. He can also tell exact differences between audio equipment. I have no doubt he has more hearing loss than I do.
Which is to say, the natural world doesn’t have a lot of sound in the frequencies where we lose hearing... so.. who cares?
