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In Reply to: RE: "IM distortion almost as bad as the orginal Bose 901"... posted by firstname.lastname@example.org on May 20, 2017 at 12:21:45
Also, I forgot to point out that the 8" Lowther drivers were specified by Paul Voight and his patents back in the 1930's to work in his ported corner horn, which at the time, bested all other designs.
He was also the first to use Tractrix horns while the rest of the world was hung up on (inferior in many ways) Exponential horns for decades.
The best of direct radiator designs use an ARRAY of drivers (3-4 way with subs) of various sizes to achieve lower distortion and FULL Audio bandwidth. I'm not saying they are worth the money to a DIY guy like me, but to ask FIFTY GRAND for an 8" woofer and 1" tweeter in a fancy box is almost criminal. The guy who's selling one used is just passing on his mistake to some other foolish buyer...........IF he can find one.
I took my Series I sans EQ outside for some graphs - if music is real good, it will survive a 901
look at the response of the rear 8 group vs the single front driver
here's what I got for the EQ box separate
Yep, ramming treble and bass into a midrange speaker will cause it to SCREAM in agony. 15 db of bass boost is what yields the gross IM distortion in Paul Klipsch's award winning papers.
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