this post was submitted on 14 Sep 2023
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Asklemmy

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[–] [email protected] 2 points 1 year ago (1 children)

I guess it might be possible to calibrate an amp for true volume if you calculate it, assuming such a feature exists (I never actually owned a dedicated amp, much less a fancy one, so I have no clue if such a feature exists), also I assume that overtime headphone efficiency will reduce as the permanent magnet gets weaker if exposed to high heat (no idea if forgetting the headphones in a car in summer would be hot enough to make a meaningful difference though) or dropped repeatedly (though I'd wager the headphones will stop working before the magnet itself in such case).

[–] thrawn 3 points 1 year ago (1 children)

Some amps do indicate how much power they’re outputting. The little portable dac/amp Qudelix 5k is $100 and does this. I think it also has fields for impedance and sensitivity, wherein it calculates SPL (dB), but I don’t actually have one so I’m not confident.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

That's pretty cool.