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...
“First of all, I'd like to mention overall view of this headphones, it's really stylish. I've listened to them with Fiio E6. Without burn-in, their sound IMO is extremely owerbrighten, but after 20-25 hours it's become more straight and normal. I think this headphones sounds good for vocals, instrumentals and classical music, due to nice airy highs and mids. On some rock songs they're...” --cleg
“ 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