So is the PK3 the only option?

Thanks. Question: Why not the PK1 or RE2?

I had JVC Marshmellows - I loved the bass, but hated evrything else. Now I have the Yuin PK2 - Love everything else, but hate the bass. So, can someone suggest a set that sounds like the Yuin PK2 AND has the bass of a Marshmellow? Needs to be unamped, and will be connected to an iPod 80GB...

New PK2 owner here - loving it so far!

First time poster, but I've been lurking for a few months. I'm looking for a $100-ish IEM for my 80GB iPod Classic. I need a good "all around" spec because I listen to everything. Must be comfortable because I'll be using them at work (data entry) and provide excellent isolation and...