Just bought some 2nd hand Bose QC20i earphones and am hearing hissing sound. Any ideas?

Discussion in 'Headphones, Earphones & Portable Music' started by christiani, Aug 16, 2017.

  1. christiani

    christiani
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    Hey everyone,

    I've just purchased a pair of Bose QC20i noise-cancelling earphones from an eBay seller. When I turn the noise-cancelling system on, it vastly reduces the noises in my environment, but I can also hear a hissing sound.

    Here goes my explanation of what type of hissing noise it is. If you plug a pair of earphones/headphones in to a computer these days, the sound is usually great, with no background noise form the motherboard or fan etc. In the past though, with cheap soundcards, if you earphones/headphones into them, you would get a background hissing sound. This is exactly the same hissing sound as I'm getting with the Bose earphones when I have the noise-cancelling system turned on.

    Is this normal for them, or are they suffering from an issue?

    Any advice would be much-appreciated!
     
  2. JayCee

    JayCee
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    It is normal to hear a low-level hissing noise with all noise-cancelling headphones.
     
  3. Brava 210

    Brava 210
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    Yeah my sony mdr1000 also hiss which is slightly annoying
     
  4. spinaltap

    spinaltap
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    No such issue exists with my BeoPlay H8's.
     
  5. JayCee

    JayCee
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    Maybe you're deaf [emoji1]
     
  6. spinaltap

    spinaltap
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    No, just well-designed cans.
     

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