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Headphone Power Calculator Spreadsheet

  1. robrob
    Here's a Headphone Power Calculator spreadsheet:

    You input your headphones' impedance and sensitivity (in either dB milliwatt or dB volt and it calculates the other sensitivity value). It also calculates the power and current at 1 volt rms. Input a target loudness and it'll give you the power, voltage and current required to get there using your headphones. You can also input an amplifier's Vrms rating and it'll give you the max headphone loudness and the power required to get there.
    I hope you find this spreadsheet useful.
    Rob Robinette
    I just published a free headphone calculator for the Android. It has power calculator and resistor network calculator pages along with help pages. I'm still deep in the development phase so any suggestions for additions or corrections would be appreciated.
    In the  Google Play Store search for 'headphone calculator' or Rob Robinette.





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  1. camusmuse
    Some people already have hearing loss, so 130dB isnt really that far out of line.  Everyone is different too, my wife gets "annoyed", she *claims* its pain(rolls eyes), at around 100db, maybe a bit less depending on her mood.  Seriously though...those really do affect her pain levels, not just hearing(fibromyalgia).   That's why I have gone with headphones, even if we are watching/listening to the same thing....can be "very" handy(closed back cans...lol, I dont hear much...:wink:...).  I get to "play" only when she leaves the house...the cans come off and I waste some serious electricity...but it suuuure is FUN!!  I wont say where my threshold of pain is, but lets just say I NEED the extra volume I "use"....lol.  I have noticed my hearing degrade over the past decade or so.  Still a decent ear, just need it a bit louder, and a "tweaked" EQ for my particular hearing loss(different from ear to ear). 
  2. no14Zereul
    This software is Awesome. Although I do not use it, my friends LOVE it.
  3. robrob
    I've seen varying numbers for the 'threshold of pain' but I went with 130dB. It's not a limit of the calculator just given as a point of reference.
  4. headwhacker
    Isn't the threshold of pain starts at 120dB? Which can already cause permanent hearing damage. Don't you think that using 120dB as absolute maximum for calculating power level is the safest? I just think 130dB is to too high.
  5. hk6230
    Cool. Thanks.
  6. robrob
    I added info about the Android Headphone Calculator in the original post.
  7. StanD
    Very handy, This will save plenty of time, I wonder why I didn't do this, thank you.