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so here is the deal-I have a headphone system which is a OTL amp and 600 ohm headphones.
I love the sound as it is half way between tube and solid state.
really the best of both- ultra fast and detailed like a sand amp with the musical timbers and 3d sound stage of tube. not Romantic like some of the older quicksilver type amps. better than SET amps in that they are even more holographic.
so how do I create a home system with this some basic setup.
OTL amps need high ohms or they become complex multi tube affiars with global feedback.
no what i need is a single driver speaker - 200 - 400 ohms approx and a single ended 2 tube total amp. maybe 2 watts output. same general setup as a 45 set although it must be much high ohms.
I have reason to believe this could be in a class by itself.
for one thing thats 1500 feet of output transformer wire that the signal does not need to pass thru
any ideas or feedback ???
Edits: 06/30/15 06/30/15Follow Ups:
Use an electrostatic speaker like Quad or Martin Logan. But, you would have to remove the stepup transformer that allows these to be used with regular amplifiers.
http://www.diyaudio.com/forums/planars-exotics/42928-tube-amps-electrostatic-speakers.html
There were also a variety of 600 ohm cone drivers made, by Phillips and others.
I would also suggest just using a Mosfet output stage, in follower mode, biased in Class A. It is basically the same as your OTL headphone amp but much higher current. I would personally avoid the use of current sources, and instead use a choke or a PNP-NPN pair. Mosfets are generally rather messy (nonlinear), but the high degenerative feedback of the follower configuration would tend to cancel that, perhaps without the consequences of other feedback arrangements.
I've often thought this could be done with a line array with the drivers wired in series. The smaller the driver the fewer problems with combing, but the lower the efficiency. Maybe consider a curved open baffle design. Probably need subs to augment, but that can work.
sure do love the OTL amps
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