The ribbons were designed and engineered but Bob in the beginnings of Sunfire for the Cinema Ribbons.
What he did after that was...
Contacted the China MFG. that was making his subwoofers, and had them quote making this new ribbon design.
Bob convinced the MFG to waive the $75-100k SETUP FEES for all the plastic injection molding tooling... in return...
Bob and the MFG agreed to Sunfire having an 18 month exclusive on the ribbons and woofers, to get the Cinema Ribbons to market.
After that 18 month time period, the MFG would be aloud to resell Bobs ribbons to other suppliers and manufacturers.
This is where Dayton comes in... Dayton is nothing but an importer brand name. They do not manufacture anything at all, they are middle men.
So... in the end, Parts Express / Dayton are really selling Bob's ribbons.
I have one that is taken apart, I will bring it with me, and everyone can see how they work.
CHOOSE YOUR OPTION... THEN CLICK THE BUTTON BELOW