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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: this is not a problem posted by unclestu on September 5, 2014 at 13:06:55:
. . . I take some of his findings very much to heart, and certainly not out of context. I aim for flat on-axis response, a smoothly tapering off-axis response, non-resonant cabinets, minimal distortion, and excellent phase tracking at least an octave either side of crossover.
This means selecting drivers with excellent specs, wide, flat response, and no nasty breakup modes outside the intended passband (metal cone woofers need not apply), so as to avoid excessive crossover complexity. Usually I can get by with a first order filter plus Zobel on the woofer, manipulated to provide adequate BSC, and second order plus L-pad on the tweeter. Both drivers connected in positive polarity. The steeper highpass filter, in addition to lowering distortion and improving power handling, adds a bit of phase lag to the tweeter to compensate for its more forward acoustic center -- even though the drivers are not "time aligned," the phase tracks nicely through the crossover region.
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- As a DIY speaker hobbyist . . . - Brian H P 13:41:39 09/05/14 (0)
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