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Original Message
RE: Apogees and ethics - comments
Posted by josh358 on February 8, 2012 at 05:39:59:
I noticed that the original Apogee patent specifies foam at the ribbon edges. But that doesn't seem to be standard practice.
I can see that a deeper well could help, but presumably at the cost of worse cavity resonance and diffraction problems.
Stronger magnets make sense. I gather that neo magnets are incredibly expensive right now, though I imagine they'll be coming down some as that new rare earth mine comes on line.
These people are using multiple ribbons in their woofers:
http://www.traudio.com/tr-mobian