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Junior Varsity
JBL SRX / QSC PL236 underpowered?
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<blockquote data-quote="Tim McCulloch" data-source="post: 82104" data-attributes="member: 67"><p>Re: JBL SRX / QSC PL236 underpowered?</p><p></p><p>The picture shows both over-excursion and overheating. My first guess is the cabinet was bi-amped and crossover settings were wrong. Another possibility is DC (for the heat) from the amp. The diaphragm destruction, though, is from the dome hitting the phase plug. It only takes a few strikes if the crossover point is low (or missing), but it can happen from extreme over-driving use, too. This damage was not caused by the occasional flickering of clip lights... it was caused by too much power for too long.</p><p></p><p>From your description of the amplifier operation, I'd say the band does not own "Enough Rig for the Gig®" at least as it applies to their top boxes, or there is something very amiss regarding system setup.</p></blockquote><p></p>
[QUOTE="Tim McCulloch, post: 82104, member: 67"] Re: JBL SRX / QSC PL236 underpowered? The picture shows both over-excursion and overheating. My first guess is the cabinet was bi-amped and crossover settings were wrong. Another possibility is DC (for the heat) from the amp. The diaphragm destruction, though, is from the dome hitting the phase plug. It only takes a few strikes if the crossover point is low (or missing), but it can happen from extreme over-driving use, too. This damage was not caused by the occasional flickering of clip lights... it was caused by too much power for too long. From your description of the amplifier operation, I'd say the band does not own "Enough Rig for the Gig®" at least as it applies to their top boxes, or there is something very amiss regarding system setup. [/QUOTE]
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JBL SRX / QSC PL236 underpowered?
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