Found some very early Thiels

I'm no expert on Thiels, but what makes you think your Conception Electronics are Thiels? Again, I don't know Thiel's history too well, but they don't look like any model I've seen from them, and I didn't see anything in your pictures that led me to think they were related.

I found this:

http://cgi.audiogon.com/cgi-bin/gallery.pl?blog&1254066402

Looks like maybe the OP is correct?

Years back they had a 8" (I believe) two way, with the well liked (at the time) Peerless rectangular frame dome tweeter. They were branded Theil, and had a conventional box like these. They sounded decent back then. This was years back. I don't recognize the drivers used it these. These had to have been earlier than the one I mentioned.

Clickable links from the OP

[http://i269.photobucket.com/albums/jj76/mjschatz/Conceptions%20Speakers/concpt4.jpg]
[http://i269.photobucket.com/albums/jj76/mjschatz/Conceptions%20Speakers/concpt5.jpg]
[http://i269.photobucket.com/albums/jj76/mjschatz/Conceptions%20Speakers/conct2.jpg]
[http://i269.photobucket.com/albums/jj76/mjschatz/Conceptions%20Speakers/conpt3.jpg]
[http://i269.photobucket.com/albums/jj76/mjschatz/Conceptions%20Speakers/conct1.jpg]

Sorry, I tried on the links.

Old thread, but I can clarify. Thiel Audio began as a division of Tom Thiel's Conceptions Design Studio which made furniture, musical instruments and other high artifacts. The first product, the Thiel Model 01 came from "Conceptions Electronics / division of Conceptions Studio". It had a custom Eminence 10" woofer and a 1.5" mylar dome by Long Engineering, with an active electronic equalizer taking response to 30Hz at 90+dB sensitivity. Goals included flat frequency response and clear dynamics over a full range in a small package. It was a success and led to future developments of phase / time coherence, first explored in the Model O3 in 1978.