The Phase Plugs

[mah]

Bowtie, no problem. Glad to be appreciated. If there wasn't any difference of opinion on the AUB it wouldn't really be a forum. Hey, I recently posted an Altec speaker power rating instead of its sensitivity on another Forum.

Keep up the good work.


P.S. Links in AUB posts do not contrast with text like they did in the past - easy to miss them at times.

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A bit more:

Lansing discovery- WHOA! [Archive] - Lansing Heritage Forums


Bell(Thuras)/WE: Patent US1707544 - Electrodynamic device - Google Patents


Blackburn(Lansing Mfg. Co.): Patent US2183528 - Loudspeaker - Google Patents


Altec Corporation(Henricksen): Patent US4050541 - Acoustical transformer for horn-type loudspeaker - Google Patents


Overview/opinion: Understanding Compression Drivers: Phase Plugs - FRONT of HOUSE

[bowtie427ss]

I try to be an ASSet for the benefit of all.

Sometimes, i only manage to get 3/5 of the way there.

[mah]

Another Altec design: Patent US4325456 - Acoustical transformer for compression-type loudspeaker with an annular ... - Google Patenten