- Joined
- 25 Jun 2007
- Posts
- 262
- Location
- Surrey - Croydon
any more ideas?
That's possible.You say that you've had this with several devices, but is there any single device that you've used them all with? Another theory is that one of them has a fault on the left channel which gives a dc offset, resulting in a constant current flowing through the earphone, heating it up and causing it to fail early.
Do you have a brother or roommate? maybe a mad girlfriend who thinks you spend too much time listening to music? Or your mom who thinks you listen to the wrong kind of music. try stashing your headphones in a place only you know where they are then if if happens again, you know that you have a split personality.
Maybe you have overactive earwax gland in left ear, ewe. Don't you swab?
I still wonder if a DC offset fault might be a possibility. If you've got a digital multimeter you could chop the buds off one of your (many) dead sets of earphones, strip the insulation back and measure dc voltage output for both left and right channels (making sure not to make a short circuit) for all your mp3 players in turn. It should show close to zero across all volume settings - if the left channel shows a dc voltage significantly higher than the right you might have found the cause. Or proven it isn't the cause!
I still wonder if a DC offset fault might be a possibility. If you've got a digital multimeter you could chop the buds off one of your (many) dead sets of earphones, strip the insulation back and measure dc voltage output for both left and right channels (making sure not to make a short circuit) for all your mp3 players in turn. It should show close to zero across all volume settings - if the left channel shows a dc voltage significantly higher than the right you might have found the cause. Or proven it isn't the cause!