big AMT Diy

[Charcoal]

Does anybody know if Neoplanars from ATCD available for purchasing?

 

[el`Ol]

This is a drawing from André:

An externally hosted image should be here but it was not working when we last tested it.

I don´t know whether it´s from his latest version.

 

[Charcoal]

El`Ol,

there is speaker with omnidirectional Heil in that review:

http://www.6moons.com/industryfeatures/singapore03/singapore_2.html

 

[Charcoal]

I would ask in this tpoic, hope someone advice.

I found possibility to buy cheap enough such planar drivers:http://www.advancedmrktg.com/NEOPLANAR.htm

(25 inches, offered as speakers for Spa)))))))


but can not get any specification fo them. Can someone elp with an info re. those drivers?

 

[Charcoal]

Ok, noone adviced, but I am to purchase them soon. Probably will measure them, listen, and will give some feedback here.

THe only feedback I saw here for Neoplanar wwas re. some special custom design for some private ship.

 

[Spasticteapot]

Any chance you think it would be possible to DIY some headphone-style AMTs?

http://www.head-fi.org/forums/f4/ergo-amt-review-56k-dont-even-try-193982/

http://www.precide.ch/eng/eergo/ergo.htm

 

[el`Ol]

I wonder whether a big AMT could look that way:

 

[Neil Davis]

Any chance you think it would be possible to DIY some headphone-style AMTs?

Yes, I think so. It turns out that you can fold/pleat an Infinity EMIT diaphragm (a HiVi RT1 should also work) to create a small Heil that has two small radiating areas that are about 3/8" by 5/8" each. That should be good for a headphone, although the original application was for a small non-directional tweeter.

I started making a magnet structure for this many years ago but eventually lost interest because it was very tedious (no milling machine, so I cut many, many pieces from some small E-core transformer laminations). I'll leave the magnet structure details as an exercise for now. I was protective of this idea for a long time because I think it has a lot of potential and I wanted to pursue this myself. But I may change my mind. If so, I'll post the drawings I made for this.