Posted by Wayne Parham [ 64.149.63.137 ] on September 16, 2008 at 13:15:29:
In Reply to: old version of Pi4 pro posted by vlad on September 16, 2008 at 12:19:43:
Use the new crossover, as it has smoother response through the crossover region.
The two-way matched-directivity configuration trades simplicity and fewer crossover points for higher bandwidth required of the midwoofer. The three-way cornerhorn configuration reduces bandwidth, in turn reducing IMD, while retaining matched directivity but it is a more complex system with one more crossover point.
Both designs offer controlled directivity that results in smooth response on and off axis over a wide 90 x 40 pattern. The two-way has collapsing directivity up to 1kHz, becoming constant by 2kHz or so. The three-way begins to become directional down around 300Hz, just above the room's modal region.
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