High Efficiency Speaker Asylum

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Does it effectively lower the cutoff frequency?

Posted by Bill Fitzmaurice on April 25, 2017 at 08:20:17:
It does, but not by a huge amount, when you consider to take the Fc down by an octave you'd have to at least double the horn length and quadruple the mouth area. The intent of the Altec 'wings' was to extend response by lowering the baffle step frequency. To some extent making a horn mouth larger does the same thing.