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Quote: I don't see how they could be, since the product wasn't out yet (that video was uploaded in 2010). But, I agree they LOOK like the AS1.  

Quick report: I tried opening the ambient ports on my AS-1b by a half-turn (the instructions recommend 1/4 turn at a time until you like the result). It was easier to hear what was going on around me, and even hear what people are saying (with the music shut off) when they spoke directly to me...

Quote: That describes the AS1 exactly, in my opinion. Absolutely love them - nothing I've tried before comes close. Now I'm looking at portable amps... thinking about the FiiO E11... probably because that's what Dale had when he delivered my earbuds. Ah - the power of suggestion!  

Quote: Actually, I don't really think these are bass-heavy, only that the bass is incredible and opening the port, for me, makes them bass heavy. Probably my favorite IEMs before these were my Sennheiser IE8 which I used for a couple of years until I, um, left them on an airplane (shame)...

Quote: They are hard plastic, not silicone. Mine do not have a rubber sealing ring but I have not seen such a thing on any custom IEM. Maybe Aurisonics had planned to do that but then found it wasn't needed? Mine seal very well although I forgot to mention that at first, it takes some...

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I just got back from the NAMM show where Dale delivered my AS1b set, made from impressions taken way back in June of last year. It was a long wait but definitely worth it. I would not call myself a super-expert in custom ear mold IEMs, but I do a lot of headphone listening (HD580 Jubilee...