DougL

Found this Discussion and resources:
http://www.cowanaudio.com/th.html

http://www.diyaudio.com/forums/wild-...eld-coils.html

I had hoped that this might happen some day.
I will be watching this

This looked Interesting.

http://www.diyaudio.com/forums/multi...ml#post1033586

I'll have to research that.

I got into audio my freshman year of collage in 1973. While I hated the "West coast sound",
The JBL L100 looked great, and had a great woofer. It is also higher efficiency than most.
HTGuide did a Thread on redesigning the XO and made a very appealing speaker.
I looked up the woofer and its 88 db efficient. So much for perception of efficiency.

My thought was to design a 3 way speaker that is ultra low distortion, 50Hz F6, and 93db efficiency. Borrowing the L100 concept, Driver compliment 12" woofer, 4" mid-range and OS compression driver.

There are at least 3 drivers in the 4" class with 93db Audax HM100Z0 4" Aerogel Mid-range ,
Fostex FE126En 4" Full Range
I already have and love MP14RCY/P in ob, but they are only 90db sensitivity.

The B&C 3/4" or 1/2" CD look like they might be a perfect match. Sure beats a 2" paper tweeter.
Even a B&C...

http://www.diyaudio.com/forums/parts...ml#post2330818