70+ and still going strong.
I bow in respect.
It feels like a century ago, I was 19, 198 lbs and 3-4 days a week in the gym, nearly every morning 40 minutes running (I said long ago…) , when my grandpa beat me in arm wrestling. In less than a minute.
He was 78.
…
However, my Grado SR325is modified with a "silver" balanced cable from Meze compensates nicely and top end is still crisp and enjoyable.
It will be a sad day when my hearing drops off more.
Might not happen.
When the otologists defined the human hearing from 20 - 20 kHz they were half polite, half optimistic.
45 - 15.6 kHz is more realistic. Human ‘conversation‘ happens between 200 and 4.6 kHz (whistling).
No one speaks at 3 kHz. Musik 40 - 9.5 kHz. There of course is music and are instruments where higher and lower frequencies are possiple, but for example, where have you heard the 5 leftmost keys on a piano played? The piano frequencies are 27.5 - 4.186 kHz. And nearly no one can sing at a 5 kHz frequency.
No, the Bee Gees can’t. Even Freddy Mercury not. Ok, Maria Carey can go slightly above 5 kHz.
But there aren’t words, just constant sounds or vibrato. And of course there is Georgia Brown who did a G10 (‘seven-lined g’, 25.086 kHz) live, which could be measured but not heard.
I always need to grin, when people lament about a headphones bad performance at 4 Hz.
In movie theaters they used 16 Hz woofer frequencies to create an unsafe feeling in crime/horror movies. You really can‘t hear it, but it makes your stomach feel …odd.
Starting from 27 we loose hearing cells. Don’t panic guys - this just raises the hearing treshold. We’re talking about 10-12 dB until 60. So People need to whisper a little louder. No more 25 dB from a meter away but 35 dB. Normal hearing is defined as understanding a word correctly at 50 dB by WHO.
In Germany 16% of the adults are hearing impaired. Fun fact: 16% of the adult germans answered the question for their favorite music with ‚metal‘. (Ignore that strange statistic. 34 said rock, 28 pop, 11 RNB/soul/hip hop, 2 ‚Schlager‘ (you don‘t want to know what this is, believe me), nearly the rest said ,independent‘, but no one said classic, blues or jazz?!)
If you ever have heard higher frequencies than 15 kHz, they are typically gone when you have reached 35.
And there is a loss of high frequencies typically starting between 50 and 60. It’s about the frequencies between 15 kHz and 10.5 kHz. This is normally finished at 75.
So this is for normal people.
First, ymmv. It will!
Second, average, normal or typical doesn’t mean… us.
Third, we are Grado people. We are listening to sophisticated music using the most refined tools.
Our ears are safe!