How I fix dented drivers

Discussion in 'Audio Science' started by regularDude, Nov 29, 2019.

  1. regularDude

    regularDude Rando

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    Hey all, I've been reading here for a while and thought to bring in myself with this video.
     
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  2. Serious

    Serious Inquisitive Frequency Response Plot

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    Hate to break it to you, but almost always a dented driver that's been brought back to its original shape will still not be as good as it used to be. The dent cracks the structure of the diaphragm or a similar irreversible change and it'll never be as good as before. The effect should be measurable and audible.
    Still, it's most likely better than not bringing it back to its shape.
     
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  3. regularDude

    regularDude Rando

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    Clearly depends how hard they are dented in.

    In my cases, it has worked always, except one time.

    I could do a before and after measurement.
     
  4. iFi audio

    iFi audio MOT iFi Audio

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    I agree on the measurement part, this should be visible, but a driver damage not always is audible. Still it all depends on the damage itself, how severe it is.
     
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  5. mdr30

    mdr30 Rando

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    There are breakup modes in the material/diaphragm design anyway which makes small things like this unimportant (if not too bad). That's my experience anyway. Have removed dents with blunt toothpicks and doublesided tape on at least 20 headphones.
     
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  6. purr1n

    purr1n Finding his inner redneck

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    ^

    It's not the end of the world, I've undented a few drivers. Dents on plastic bubble headphone drivers are reversible if not severe. And I reversed a few dents on some big woofers.
     
  7. Jinxy245

    Jinxy245 Vegan Puss

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    I was taught that for the 650, just blow in the back opening (grill removed) and it pops right back into shape. Blew my mind.
     
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