Zarak,

You might check out some of the ear-bud models from Shure. When I reviewed a group of in-ear models (and disliked the Etymotic 6i because of its utter lack of bass and edgy upper midrange), the Shure E4c had very extended response, good bass and smooth neutral midrange. If memory serves, they were fairly expensive, about $300, but Shure has introduced other models since then.

Regards,

Alan Lofft,
Axiom Resident Expert (Retired)