Any Tube Guys Here ?

Actually you got a really good point there. Reallly high freqs can be handled by peizos, and lower freqs are mopre aptly handled by dynamics, but the nidrange is what wets the pants of the audiophiles.

Maybe that's what I should do. ;Deal with thte rest of it later.

You probably will have to. The key the Quad electrostatic's success was an astonishingly high resistance "conducting" layer on the membrane.

The capacitances per unit area involved were small, so the high resistance didn't stop them working, but it did stop the membrane distorting into little spikes under the influence of the electrostatic field.

One of my colleagues from Cambridge Instruments moved to Quad in the mid-1980's and told me a few stories when I ran into him after he'd been there for a few years.

Perhaps as well. Electrostatic speakers can be tricky.

ance "conducting" layer on the membrane. "

This is somethng I find as bit hard to understand. At first one would htink the most conductive material would be the best, but apparently that is not so. Is it because of the delay lines and phase ?

Is it that in such a system, that a totally conductive membrane would negat e the effects of the delay lines they might call a crossover ? The array of coils an d caps that make the thing what it is, that is.

Also, I see somehting like 6 K as voltage. Is the actual voltae to be appli ed to be around that level ? From what I hear, the limiting point, if not r eached in excursion, means an arc between the electrodes. that determines i ts maximum output and power handling.

All in all, I have reached the conclusion that ESL is not the way to go for all ranges. As such, I will probably take an approach such as Martin Logan.

In same though, I can still do direct coupled, and an internal amp for everything.

My partner just showed me an articlde anbout speakers about like that, at least somwhat.

The price was $106,000 a pair. They included 400 watt amplifiers in each.

Anyway, if my speakers have top plug in the wally for the [polarizing voltage, they might as well do it all. This is my current idea.

More later.

TO PLUG IN THE WALL

stance "conducting" layer on the membrane. "

nk the most conductive material would be the best, but apparently that is n ot so. Is it because of the delay lines and phase ?

ate the effects of the delay lines they might call a crossover ? The array of coils an d caps that make the thing what it is, that is.

if the membrane has low resistance the charge will crowd at the place of least distance so you don't get an even force on the whole surface of the m embrane

-Lasse