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The Stax Thread III - Page 133

post #1981 of 3330
Quote:
Originally Posted by jgazal View Post
 

Thank you for mentioning this paper (http://arxiv.org/ftp/arxiv/papers/1303/1303.2391.pdf)! They give the recipe to cook the graphene! Nice.

 

Awesome! Sounds easy enough. I'll work on getting setup to do this for my DIY drivers.

post #1982 of 3330
Quote:
Originally Posted by dude_500 View Post
 
Quote:
Originally Posted by jgazal View Post
 

Thank you for mentioning this paper (http://arxiv.org/ftp/arxiv/papers/1303/1303.2391.pdf)! They give the recipe to cook the graphene! Nice.

 

Awesome! Sounds easy enough. I'll work on getting setup to do this for my DIY drivers.

Great :D 

But you still can't get thin enough graphene sheets?

post #1983 of 3330
Quote:
Originally Posted by davidsh View Post
 

Great :D 

But you still can't get thin enough graphene sheets?

 

It seems as though I can make them. Also, I actually did find a number of sources online for extremely thin graphene sheets that come backed on foil (the trick is to search 'foil backed graphene sheets'. Then I would acid etch the foil away after gluing it to a diaphragm holder. The problem is they are in the range of $50/square inch, so I'll have to make my own.

post #1984 of 3330
Quote:
Originally Posted by Crashem View Post

Just got noticed my sr009 shipped from japan. A lot faster than I originally thought would happen. Bhse on order. Need to get an amp ASAP. Don't want these sr009 sitting around too long without use. Might have to get woo wee and hook them up to this spare parasound a51 lying around.

 

Wow postman just dropped off my new SR-009s!  That was fast through EML.  Went out on 4/4 from Japan.

post #1985 of 3330
Quote:
Originally Posted by Crashem View Post
 

 

Wow postman just dropped off my new SR-009s!  That was fast through EML.  Went out on 4/4 from Japan.

Congratulations! Yes, that is fast.

 

But more importantly did you find/buy/borrow an amp? That would be the worst torture to have pair of 009's with no amp!

post #1986 of 3330
Quote:
Originally Posted by darinf View Post

Congratulations! Yes, that is fast.

But more importantly did you find/buy/borrow an amp? That would be the worst torture to have pair of 009's with no amp!

The torture has already begun. Waiting on kgsshv from spritzer which should hopefully hit me in 2 weeks. Who knows how long for the bhse I have on order. I started to open the sr009 then stopped when I remembered I could use them. Funny thing is I got my eml 2a3 tubes today and no amp to play them in. More waiting. More torture.
post #1987 of 3330
Quote:
Originally Posted by dude_500 View Post

 

Assuming one could purchase graphene that thin, which it appears one cannot, wouldn't it still be nearly as conductive as metal? An electrostatic diaphragm should not be anywhere close to that conductive.

 

Forgive my ignorance, but I thought in the given structure they can't short circuit the stators. I would think that arcs can't form either, since it's exceptionally smooth. Besides, I expect conductivity is *very* directional with graphene. 

As dripf says, they are insulated, but is that really needed? 

Practice will tell.

They are indeed pretty much perfect materials for headphones, unfortunately not (yet) so much for loudspeakers.

post #1988 of 3330

It's not just about arcing though.  A high resistance on the diaphragm will prevent charge migration and allow the transducers to operate in "constant charge" mode.  Are there any distortion measurements of that graphene project?

post #1989 of 3330

Ordered me an SRS-4170 system, can't wait! 

post #1990 of 3330

Ordered me an SRS-3170 system, can't wait! 

post #1991 of 3330

007 Mk2 arrived today, Woo Audio WES expected on Monday. My intent when I first entered into the hobby was to ease into it bit and enjoy the experience and variety of headphones and amps over time. Gotta blame the NY Meet last weekend for diving in hard. :) Couldn't resist the Stax rig. Just sounded too good to avoid it any longer.


Edited by adidino - 4/10/14 at 2:48am
post #1992 of 3330
Quote:
Originally Posted by adidino View Post

007 Mk2 arrived today, Woo Audio WES expected on Monday. My intent when I first entered into the hobby was to ease into it bit and enjoy the experience and variety of headphones and amps over time. Gotta blame the NY Meet last weekend for diving in hard. smily_headphones1.gif Couldn't resist the Stax rig. Just sounded too good to avoid it any longer.
Tell me about it.... One trip to Japan and now I have a 009 and a BHSE on the way.
post #1993 of 3330

I have the Stax SR 507 which has developed channel imbalance due to parasitic charges.  I store the phone on a bentwood stand under a Stax clear dust cover.  However, I have been guilty of leaving the phones on the desk uncovered during the day.  it is only at night that I cover the phones.  What is the best way to dust this phone?  In another thread, one user uses this:  http://www.amazon.com/Giottos-AA1900-Large-Rocket-Blaster/dp/B00017LSPI/ref=pd_bbs_1/104-7072879-7496700?ie=UTF8&s=electronics&qid=1186614550&sr=8-1

 

However, I'm leery of using any excessive force.

post #1994 of 3330

Dust isn't going to cause your imbalance.  It's either the coating or a gap forming between the spacer and diaphragm or stator.

post #1995 of 3330

You are better off returning it. There is no guarantee that you problem won't come back, even if you can fix it this time.

Having said that, I found storing the headphones in a plastic bag with desiccant for a few months seem to have help cure the issue I have with my SR-X MK-III.

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