Just a quick question. I have a fair few pairs of earphones/headphones.

Some work great and as they should like apple earphones or 'skullcandy ink'd' earphones.

But then others don't, where they still play the music, but not properly. Like the vocals cant be heard, and its quieter. This happens with the 'skullcandy lowrider' headphones and my 'JVC HA FX1X Xtreme Xplosives' headphones. Its basically that bad that you're only really listening to noise and not music.

Anyone have any idea why this is happening? Its with my ipod touch 4G. I know all the earphones work as they work with my laptop and tv. They're just funny with my ipod. I have tried cleaning my ipod jack...

Any help will be appreciated