Is this a joke?Are people actually arguing over which 7mm speakers give the most bass?
IMHO I would stick with the factory iPod ear buds. As much as people keep saying they get more bass with EarCandy or Shure (I've tried both) I think they are wrong. As far as I could tell there was not any lower frequencies but there was more sound pressure in my ear canal. That is due to rubber tips that seal inside your ear. If you sealed the iPod earbuds you would have the same effect.
Nobody mentions the downfall of these rubber tips:
They completely block off the outside world. You are clueless as to what is happening around you while you ride, jog, walk, etc. The constant pressure from the rubber tips would physically hurt my ears after a half hour or so as well. To me there wasn't more bass, just more boom. I could never find an eq setting on the iPod to tone down the "over boosting" of the bass.
Save yourself 100 bucks and stick with the factory earbuds...they are earbuds playing MP3's for God's sake...hardly audiophile territory.