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In Reply to: RE: Your list of most influential/important speaker DESIGNERS? posted by Brian H P on May 15, 2015 at 11:54:59
Ed Vichur did not invent the bass-enclosure idea - he just popularized it. But good to mention the design.Richard Modaferri - because slopes of 48-60/db seem best, for most systems. He went steeper - but the idea took.
It's hard to pinpoint people - but Bell Labs for their pioneering work in horns - which other co. modified for the home. That's how why got Paul Klipsch.
Tannoy and Altec for creating pro systems - but are now called 'waveguides' and becoming very popular with audiophiles.
Linkwitz-Riley - I hate to say no, but this was a cascaded Butterworth. And then, it (appears) that a straight 2nd order slope was good enough. Until the 48-60/db slopes (w/ DSP) now coming out.
Roy Allison - not yet, as very few are doing corner bass. But Roy never touted the idea of putting subwoofers in (multiple) corners anyway - that came from Europe, but the name escapes me.
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Important and innovative, sure, but not really "influential" because nobody else seems to be using his ultra-steep passive filters approach. I think Joseph Audio has exclusive rights to this tech, at least for the time being. Of course, similar slopes can be achieved actively with DSP.
Good call on Bell Labs -- both Butterworth and Zobel worked there. Bell's research early on was all about speech intelligibility, but the work on passive filters majorly influenced speaker design later on.
Linkwitz derived the transfer functions that bear his name from cascaded Butterworth filters, sure, but he also described in greater detail than anyone before the on/off axis lobing effects of different transfer functions and orders.
Vilchur didn't invent the closed box but he added the idea of using the enclosed air as the restoring force for the woofer. Before that the enclosed air only had to be accounted for. Olsen mentioned the idea but I don't think really used it and Vilchur claims he advanced the concept. While his patent was over turned he believed he could still win it back but it wasn't important to him. And if you know a bit about his history that is believable.
He didn't ?
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