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absolve2525

One heck of a center channel speaker!

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Wow!  having had 30s (and 20s and 10s), the thought of that as a (my) center  exceeds my hopes--but not my imagination!

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The only concern is comb filtering which depends on how high the crossover is between the woofer and the squawker. 

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The only concern is comb filtering which depends on how high the crossover is between the woofer and the squawker.

Assuming I understand this calculator, which may be questionable, a crossover frequency of 825 hz means there needs to be 8" or less between the center of the drivers for there to be no noticeable lobing issues.

http://www.mh-audio.nl/calcmaxfreq.asp

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According to that calculator, if those drivers are 26" apart center to center, frequencies between about 130Hz and 260 Hz will have lobing or comb filtering.

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Lower the crossover between the woofer and midhorn or move the woofers closer together on the motorboard or both.

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The crossover is indeed 825Hz according to Klipsch. https://web.archive.org/web/20120102162503/http://www.klipsch.com/klf-30

 

The woofers are 12", which means that center to center on a normal KLF-30 the distance is 12.5" or nearly touching. 

 

I wonder what would happen if you reversed polarity between the two woofers?

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