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<blockquote data-quote="Art Welter" data-source="post: 216292" data-attributes="member: 52"><p>The 150 watt JBL K151 only has 2.54mm Xmax- even the relatively lame Eminence SIGMA18A-2 has a 650 watt rating with 6.1mm Xmax.</p><p>Doubling Xmax (linear excursion) can allow for 6dB more low frequency output. There are now 18" drivers with as much as 10 times the Xmax of a JBL K151, though they would cost more than $500 per unit.</p><p></p><p>Anyway, Randy (the OP) has not replied in over 3 weeks, so not much more to discuss..</p></blockquote><p></p>
[QUOTE="Art Welter, post: 216292, member: 52"] The 150 watt JBL K151 only has 2.54mm Xmax- even the relatively lame Eminence SIGMA18A-2 has a 650 watt rating with 6.1mm Xmax. Doubling Xmax (linear excursion) can allow for 6dB more low frequency output. There are now 18" drivers with as much as 10 times the Xmax of a JBL K151, though they would cost more than $500 per unit. Anyway, Randy (the OP) has not replied in over 3 weeks, so not much more to discuss.. [/QUOTE]
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