I bought these to replace my cheaper fontopia earphones for use with my ipod and to be honest i wasn't expecting them to be that much better - how wrong i was. Once i'd got the correct fit ear piece fitted they sounded amazing. Using my old fontopias i would have the volume on full, with these i only have them half way because they sound so much better and so much louder.

For me the bass doesn't sound too heavy at all (and i've been listening to Timbaland!) , in fact it sounds feeble if your EQ is set to flat. Changing the EQ mode on iPod provides drastic changes in sound (especially bass) and i honestly think they compliment the iPod perfectly, i can't speak for other mp3 players? I have them plugged in to my ears for an hour or two at a time and they feel very comfortable and background noise isolation is excellent.

I listen to everything from Ambient to dance to heavy rock and these earphones deliver no matter what i'm playing. The sound quality is superb. Highly recommended. "

With a genuine pair (there are lot's of fakes around) these earphones are absolutley superb. I also own a pair of 'top of the range' SE530s Shure earphones costing over £200+, these Sony MDR-EX90s are almost as good, in fact, the bass sounds deeper and more realistic with the Sonys. Truly, a superb set of earphones. "

I have received my mdr-ex700 few days ago, and I fell in love with it at first listen, it is very well balanced sounding earphone on all frequencies, very good bass for an earphone, some time I got carried away and I thought I was listing through ATH-W5000, I mean it, this earphone is that good. There are no other earphones that I listend to can compare with this one. If sony could reduce the price of this earphone, then they will have a winner.

what can I say, Sony, with this earphone you got it right.

Dont decide to buy before you listen to this product, may be you will not like it the way I did. "