Fox2twenty
Formerly known as iPhone IEM
Is this what you are recommending at ~100?The Magosi K3 HD is the one to look into if you want something with a more refined treble. The K3 HD has better mids and treble than either the F9 or the Zs6 at the expense of the bass being less present and slightly less extended.
Magaosi K3 HD Balanced Armature Dynamic Driver Hybrid IEM HiFi Audiophile In Ear Earphone
http://s.aliexpress.com/v2emQjEV
(from AliExpress Android)