Has anybody made an ELS headphone?

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#401
Hi Mark,

I do notice a big increase in sound stage and dynamic from increasing the active diameter from 70 to 80 cm. As far as efficiency, it's not that significantly better.

I'm very interested in your horn loaded ESL. Could you post a link to that, please?

Wachara C.
 
#404
Oh,Okay !!! he,he,he

Still would like to hear of your results.
Later this year I will try it though after I get my new little panels built.


Wachara,
I can't believe that it has been a whole year now since I had started my Esl Headphone's and have yet to finish them!!

I think that I will use your method of wood to support the frames now that I have finally gotten my stator coating down pat for the wire mesh stator method.

jer 🙂
 
#406
I had once thought of using a pair of gold plated CDR's to make a compression type of ESL driver with the exit out of the center spindle holes.

I was thinking of this technique to boost the lower end for a headphone driver as well.
But I have yet to give it a try.

jer 🙂
 
#407
Here is another pair that is almost done:

0962e66b.jpg


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DSC_3742.jpg


DSC_3747.jpg


DSC_3752.jpg


The driver has the same size as the famous Orpheus HE90. They sound really nice. 😉
 
#408
Nixon said:
Read this and the similar thread over at DIY Audio and I think I might have to have a crack at a set. Spent the evening on Sketchup and have began designing the stator and spacer.
stator.jpg

spacer.jpg



Ever so slightly ripped off from one of chinsettawong's designs. Do they seem ok so far? They're both 90mm in diameter so you have an idea of scale.
Click to expand...

Hi - sounds interesting that you are using sketchup for this. Any chance you can post some pictures of your drawings? And also which file format do you output from Sketchup? I'm interested in drawing headphones myself, however, probably would need an .stl output format - for use with a 3D printer.

Greetings,

Jesper
 
#410
Hi again,

Just out of curiosity - any of you made a single-ended headphone, i.e. with only one stator (could be with two stators but only one of them connected to the output signal)? I know that theoretically it's less optimal (due to varying electric fields when the membrane moves, I understand) but any of you tried it in practice? It would allow for a single-ended amp ....

Best regards,

Jesper
 
#412
gentlevoice said:
Hi again,

Just out of curiosity - any of you made a single-ended headphone, i.e. with only one stator (could be with two stators but only one of them connected to the output signal)? I know that theoretically it's less optimal (due to varying electric fields when the membrane moves, I understand) but any of you tried it in practice? It would allow for a single-ended amp ....

Best regards,

Jesper
Click to expand...


Hi Jasper,

Even though I haven't tried it, but I figure that the efficiency will be very low.

Wachara C.
 
#414
chinsettawong said:
Hi Jasper,

Even though I haven't tried it, but I figure that the efficiency will be very low.

Wachara C.
Click to expand...

Hi Wachara,

Thanks for replying ;-) I'm wondering though - since the membrane is very, very close to the stator I would assume that the drop in the electric field at the place(s) where the membrane moves would be very, very little ... Yet the extra stator adds the double voltage (on the other side of "zero") so might it be that the efficiency loss is 6 dBs (=20*log½)?

Any of you have insights on this?

Greetings,

Jesper
 
#416
HE 90 size ...

The driver has the same size as the famous Orpheus HE90. They sound really nice.
Click to expand...

Hi again Chinsettawong,

Now I'm in the process of making a model of the stators for an ES headphone and would like to do make like the HE 90 stators you show in #407. You say that the stators you use are the same size as the ones in HE 90 .. Can you say what the dimensions of the active area is?

Greetings,

Jesper M.
 
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