Jazzman's DIY Electrostatic Loudspeaker Project

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Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #20 on: 30 Sep 2010, 01:07 am »
Matter of fact, I was speaking with my wife to go down there.  I absolutely love it and she's never been.  I've only been down there for the race track and was lucky enough to wander for a few days.  The best Pecan pie I've EVER had was on the coast.  Very well known place I think.

Consider it done!  We just need to set a date.   :scratch:

Kool !  check your messages :D

BobC

Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #21 on: 30 Sep 2010, 01:12 am »

As I tell my friends: “they won’t blow the windows out but they will blow women’s panties right off”   (this I have confirmed but my gf says that could happen anyway)


 :rotflmao: :beer:

newportcycle

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #22 on: 30 Sep 2010, 09:56 am »
Jazzman, got to hand it to you man, those speakers look fantastic, nice job.  Looks like I may have found a new speaker project, I've allways loved ES speakers and was motivated on my last build to equal a pair of Martin Logans that I was lusting after, just couldnt afford.  I would have to scale things down a bit as that extensive beam splitter design you've done will not pass the WAF here.

Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #23 on: 30 Sep 2010, 12:50 pm »
I would have to scale things down a bit as that extensive beam splitter design you've done will not pass the WAF here.

With the black grills on they do kind of resemble those imposing black obelisks in 2001 Space Odyssey.  Even with the grills off, the panels are still rather dark because of the beam splitter behind them.

You could build a pair with about the same frontal area except without the beam splitter and they would look far less imposing, as the panels would then be almost transparent (a lot of light would come thru from the behind).         





jtwrace

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #24 on: 30 Sep 2010, 01:06 pm »
I can't wait for the ESL build class in beautiful Savannah, GA.   :hyper:

$500 per student with a max of 10 students.   :D

Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #25 on: 5 Oct 2010, 12:23 pm »
Nice project.  I love 'stats. 

Do you find that the 10" in the TL is quick enough to keep up with the panels?  Where are you crossing them over or did I miss that in your blog?

Bryan

Actually, I was very surprised how well the woofer blended with the stat panel, especally considering all that I had read beforehand about how hard it is to achieve a good blend. I like to think that the TL alingment and the fact that I angled the woofer slightly upward helped.  My crossover is 24db/oct and it's adjustable so I've played around with various crossover frequencies.  Lower is desirable of course, as you don't want a crossover in the midrange-- I've decided that 275hz is about as low as I can go without resorting to exessive EQ above that to balance the stat's dipole cancellation.  I'm currently crossing at 300 hz.  Actually, the combo works surprisingly well-- it actually sounds like a single driver as long as you're in the sweetspot (it's necessary to include that little caveat; "in the sweet spot", when describing a flat-panel ESL).           

bpape

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #26 on: 5 Oct 2010, 01:01 pm »
Understand completely about the sweet spot thing - believe me.

Great project.

Bryan

Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #27 on: 14 Oct 2010, 09:06 am »
Understand completely about the sweet spot thing - believe me.

Great project.

Bryan
Except for woofers, I've got enough stuff lying around (extra perf metal, trannies, power supply components) to build another pair of ESL's so I'm thinking about building some curved panels, just to see how they would sound. Most builders I've asked at the DIY forum say the flat panels have superior imaging and actually sound better than curved panels, but only inside their much narrower sweet spot.  Hopefully, after I get my Christmas wood projects done, I will be psyched to do the curved panels.   

bpape

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #28 on: 14 Oct 2010, 11:47 am »
Take a look at what Acoustat did early on.  They did the 'curve' with 4 flat panels in an angled array.  2 panels 8" wide, 2 panels 9" wide in each speaker.  Not perfect and it does still have a small sweet spot but it's at least a little bigger than the later flat ones.

Bryan

S Clark

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #29 on: 14 Oct 2010, 02:18 pm »
Now THAT is a beautifully done project.  The wife and I have talked about heading to Savannah for a bit of vacation.  If I ever get over that way, I'd love to hear those.  Impressive  :bowdown:

TomS

Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #30 on: 14 Oct 2010, 03:31 pm »
Very nice project!  I was just at SCAD in Savannah last weekend and should have dropped in to check these out.

I built some many years ago from Sanders plans and unfortunately with my meager skills they didn't turn out so good  :oops:

Tom

Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #31 on: 14 Oct 2010, 03:42 pm »
Now THAT is a beautifully done project.  The wife and I have talked about heading to Savannah for a bit of vacation.  If I ever get over that way, I'd love to hear those.  Impressive  :bowdown:

You have an open invitation... give a yell and come on down anytime  :thumb:

Jazzman53

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Re: Jazzman's DIY Electrostatic Loudspeaker Project
« Reply #32 on: 14 Oct 2010, 03:50 pm »
Very nice project!  I was just at SCAD in Savannah last weekend and should have dropped in to check these out.

I built some many years ago from Sanders plans and unfortunately with my meager skills they didn't turn out so good  :oops:

Tom

I certainly learned a lot from Sanders' book but as good as it is, some of it is hard to follow and sources for good transformers just aren't there (trannys are the most likely component to screw up).  Also, I don't agree that .020 aluminum is ideal for stators, as I can feel my .048 steel stators vibrating when they play so I strongly suspect thin aluminum sheets would ring like a bell.  Also, I strongly advise applying an insulating paint to the stators.  Actually, I think Sanders himself would do the Cookbook differently today. 

SCAD is  great school... drop by with your favorite CD's next time you're in Savannah.  :thumb: