Originally posted by djg
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And in most cases, due to the depth of the waveguide, it puts the tweeter acoustic center behind the woofer. The example I posted above would be for a stand mount version, pointing straight ahead, but you sacrifice group delay at the crossover point, since the tweeter is actually 180 degrees out, for an in-phase summation at the crossover point, on that particular axis. It would be great to use a 15" woofer with such a deep guide, or figure some way to move the 12" woofer back, to better line up with the tweeter, so that you don't have to compensate for so much acoustic offset.
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