hentai
1000+ Head-Fier
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- Aug 6, 2004
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That goes my favorable opinion of Japanese Quality control.

I have an SR-009 on order through Woo Audio in New York and received the following e-mail from Jack earlier today:
"We received a news from STAX. About 12% of SR-009 developed noises due to microscopic dust between the stator and the film. A decision made by June 27th that all shipments are stopped. STAX is currently revising the design and solving the problem. Shipment will resume within 60 days.
I am sorry for the bad news. I will keep you updated.
Sincerely,
Jack"
I don't understand the date reference but the rest is crystal clear.
Or, in other words, back to the drawing board.
"noises due to microscopic dust!" Really? Just words to make the problem seem small. The problem(s) is more than just noise, some owners are complaining of a loss of signal. That's not a dust issue.
I assume we will find out some day what the real problem is and it will be interesting to compare that knowledge with this release.
Why do people always assume the manufacturer is lying?
Going by Gu Sensei's description of the issue with his pair, it seems they still can't make the cable and wiring properly.
Having heard time after time what dust does to electrostatic transducers, lost signal isn't one of the effects.
maybe the disphragm is collapsing and sticking to the stator? That can explain why pushing the cup will make the sound normal again (air pressure pushing the diaphragm off the stator).
I have made many ES headphones, and I think that Stax is pushing its headphones a bit too hard. From what I have heard, the SR009 is more efficient than SR007. They must have made the D/S gap smaller than SR007 - yet keeping the bias voltage the same. There is a big possibility that the diaphragm might randomly collapses to one side of the stators.