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Frankenstein JBLE EVOi324s
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<blockquote data-quote="Tom Manchester" data-source="post: 31364" data-attributes="member: 82"><p>Re: Frankenstein JBLE EVOi324s</p><p></p><p></p><p></p><p>From what I've found, most commercial cabs that have the "lower" woofer rolled off with a choke also have a choke of a higher (frequency) value on the "upper" woofer. I assume that because a single choke in line will produce a 90 degree phase shift, adding a choke in line with the upper woofer will keep the two relatively in phase with each other. In other words, whatever you do to one woofer, you have to do to the other to keep them in phase. </p><p></p><p>From my study of major manufacturer's crossover designs, many of even their professional level cabs have both the woofers paralleled together and running together up to the crossover point. The how and why of that is beyond the scope of my knowledge.</p></blockquote><p></p>
[QUOTE="Tom Manchester, post: 31364, member: 82"] Re: Frankenstein JBLE EVOi324s From what I've found, most commercial cabs that have the "lower" woofer rolled off with a choke also have a choke of a higher (frequency) value on the "upper" woofer. I assume that because a single choke in line will produce a 90 degree phase shift, adding a choke in line with the upper woofer will keep the two relatively in phase with each other. In other words, whatever you do to one woofer, you have to do to the other to keep them in phase. From my study of major manufacturer's crossover designs, many of even their professional level cabs have both the woofers paralleled together and running together up to the crossover point. The how and why of that is beyond the scope of my knowledge. [/QUOTE]
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