I came up with this idea after buying a Stax headset and energizer.
Would it be possible to use them as tweeters in speakers, say above 4 KHz and therefore feed them with more power to achieve a decent SPL?
Any idea, comment or input would be nice!
Kind regards,
Willem.
Would it be possible to use them as tweeters in speakers, say above 4 KHz and therefore feed them with more power to achieve a decent SPL?
Any idea, comment or input would be nice!
Kind regards,
Willem.
Basically no. Amount of power they can take and volume they can produce is not practical for a speaker.
Thanks, I thought it would be possible to add more power when you cross them higher, as you can with normal speakers, assuming there is an X max of the foil.
So by 4 K and up it could produce more SPL.
Maybe I just try, bought the whole set for € 20 and the headband is broken anyway.
So by 4 K and up it could produce more SPL.
Maybe I just try, bought the whole set for € 20 and the headband is broken anyway.
€ 20? Argggh! I love Stax but could never justify the expense. But for € 20 I do a lot of fixing. 🙂
Let us know if you get any decent level out of them above 4K.
Let us know if you get any decent level out of them above 4K.
Crossing at 5k would give you approx 50dB higher output. Well worth a try. And since there is less musik information there as well it could be used with even more gain.
Because I hardly use headphones and I like to salvage/re-use stuff.
Otherwise I have to buy electrostatic tweeters and now I can experiment with them.
Otherwise I have to buy electrostatic tweeters and now I can experiment with them.
You usually listen to headphones in the near field and to electrostatic loudspeakers in the far field. For flat panel electrostats, you need frequency-independent current drive to get a flat response in the far field and frequency-independent voltage to get a flat response in the near field. That is, you probably need a first-order low-pass at 4 kHz to get a flat response above 4 kHz.
Cascade a first-order high-pass at 4 kHz and a first-order low-pass at 4 kHz (*) and together with the panels you have a second-order 4 kHz Linkwitz-Riley high-pass response in the far field.
(*): with a buffer in between or with a large impedance ratio to keep them from influencing each other
Cascade a first-order high-pass at 4 kHz and a first-order low-pass at 4 kHz (*) and together with the panels you have a second-order 4 kHz Linkwitz-Riley high-pass response in the far field.
(*): with a buffer in between or with a large impedance ratio to keep them from influencing each other
Besides Xmax, ESLs have a further limitation in the maximum possible force per unit area that can be applied to the diaphragm(foil) of roughly 50N/m^2 due to ionization of the air in the gap between diaphragm and stator. This is why all ESLs tend to by much larger than their magnetic driver counterparts. With the small size of the headphones, this limits SPL at 2m listening distance to roughly 85dB maximum @ 4kHz before they would start to arc internally.
Thanks, that is good information!
Ok, back to restore this into a working headphone.
Thanks all for your opinions and sharing knowledge, highly appreciate it!
Kind regards,
Willem.
Ok, back to restore this into a working headphone.
Thanks all for your opinions and sharing knowledge, highly appreciate it!
Kind regards,
Willem.
As much as I am a partisan for ESLs, the octave or so in the range north of perhaps 5kHz (just a rough pick) can probably be handled better in half a dozen respects by any number of other mechanisms starting off with $25 silk domes.
And your amp will probably also be happy to be free of driving the high-frequency band of a full-range ESL too.
B.