In Reply to: RE: Elliptical crossovers? posted by Steve O on September 23, 2016 at 07:19:49:
..."infinite slope" Modaferi crossover started with JSE speakers.
Joseph bought the patent and still uses them.
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Follow Ups
- RE: Elliptical crossovers? - mkuller 10:11:19 09/23/16 (0)