Re: You'll have to speak up!
The next big leap in hifi will be injecting "sound" directly as electrical current into your brain, bypassing the ears completely.
It will remove at a stroke all the hassles of acoustics, hearing loss and fidelity. Although I'm sure someone, somewhere will be selling gold plated vinyl earplugs to mugs, proven to improve the quality of the music in your head by eliminating cross contamination with a truer analogue wave form.