AFAIK they are only popular in Japan.

http://www.stax.co.jp

It is a complete different technology. Instead of using and electro magnetic system, like small speakers, it uses a high voltage (~500V) electrostatic system, hence the need of a dedicated amplifier.

You can get an used unit at eBay. http://www.ebay.com/sch/Consumer-Electronics-/293/i.html?_from=R40&_nkw=stax

The one I tried was from the 80’s and sounded fantastic.

Cheers

Gian

Em 16/12/2014, à(s) 19:06, Ralf Mardorf <ralf.mardorf@rocketmail.com> escreveu:

On Tue, 16 Dec 2014 18:43:12 +0100, Gianfranco Ceccolini wrote:
Ever tried a Stax ?

I once had the opportunity to try a SR-307 (Lambada series) and they
were amazing.

Thank you,

no, I've never seen such a thing in an audio or video studio, so I'm
sceptic.

Regards,
Ralf