Hi!
I have obsessed about ESL for some time and want to get around to fabricating my own. A headphone has been the target in my sights for quite some time. So I have some questions on the amplification methods available.
One appealing method is to direct drive it using this depiction of a Boroskie headphone tube esl amp:
http://cdn.head-fi.org/6/69/69546e18_wholecct_RV41.jpg
This is appealing to me because the necessity to match impedances are not required being that it is a OTL. Also this is nice because the PA is native to the set up.
The alternate rout is oddly Ultra simple. But I simply can't find enough literature on the subject.
Jazzman's DIY Electrostatic Loudspeaker Page: The Electronics Package
Calvin's discovery of super cheap Antek power toroids as a method of stepping up the swing is so cost effective and not time consuming that I must seriously consider it as well. This needs a PA in line... Not an issue but my fear is is matching impedances and possible capacitance problems. Being said, can anyone inform me if concerns for matching impedance is nesscesary or not with ESLs (what about at headphone levels)? I hear a lot about minimum PA wattage rating with the transformer set up. Dangers of damaging?
Tips? Bullet proof setup? Am I going to have to wait untill I fabricate my headphones before I can put metrics on what kind of driver I need?
I have obsessed about ESL for some time and want to get around to fabricating my own. A headphone has been the target in my sights for quite some time. So I have some questions on the amplification methods available.
One appealing method is to direct drive it using this depiction of a Boroskie headphone tube esl amp:
http://cdn.head-fi.org/6/69/69546e18_wholecct_RV41.jpg
This is appealing to me because the necessity to match impedances are not required being that it is a OTL. Also this is nice because the PA is native to the set up.
The alternate rout is oddly Ultra simple. But I simply can't find enough literature on the subject.
Jazzman's DIY Electrostatic Loudspeaker Page: The Electronics Package
Calvin's discovery of super cheap Antek power toroids as a method of stepping up the swing is so cost effective and not time consuming that I must seriously consider it as well. This needs a PA in line... Not an issue but my fear is is matching impedances and possible capacitance problems. Being said, can anyone inform me if concerns for matching impedance is nesscesary or not with ESLs (what about at headphone levels)? I hear a lot about minimum PA wattage rating with the transformer set up. Dangers of damaging?
Tips? Bullet proof setup? Am I going to have to wait untill I fabricate my headphones before I can put metrics on what kind of driver I need?