The SR-003 is a 5-pin PRO bias type in-the-ear earspeaker, and can be used by connecting to a driver unit having 5-pin PRO bias output socket. Also, the inner type structure of the SR-003 enables you to enjoy excellent electrostatic sound readily without covering your ears. The SR-003 connects to STAX driver units or adapters equipped with 5-pin type PRO bias output- The Stax SR-003 is the home...
“ This is my first foray into the electrostatic world and won't be my last. Everything that has been written in the past about Stax is borne true in listening to these phones. Liquid mid's, shimmering treble and a suprising amount of deep, strong bass. Even though described as portable I would not go outside with these. They are my in the house set up as they offer little or no...” --ianmedium
“ http://www.head-fi.org/forum/thread/562428/review-kozee-infinity-x1-custom-molded-iem See above for my in depth review. This really is a good product. The issue is with the company itself. As I mention in the review, they are not returning emails from customers. And when people do manage to track them down on the phone - they make promises that are apparently not kept. I like Kozee...” --project86