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<blockquote data-quote="Art Welter" data-source="post: 146101" data-attributes="member: 52">Re: JBL VP wedge failure modeBrian,You did not state whether the wedges were getting the same or different inputs. Assuming different inputs, perhaps the input used on the center wedge &amp; replacement contained sub-sonic or UHF frequencies that trigger a speaker disconnect, when power is unplugged the circuit is deactivated, and audio then is passed until cap discharges.Going top be hard to duplicate unless the console (or outboard gear) itself is passing sub-sonic or UHF frequencies, in which case any of the wedges plugged into the defective output will react in a similar fashion.If the cause was upstream of the console, could be a bad cable (though unlikely) DI, instrument or wireless.&quot;Signal Processing:&nbsp; DSP based, resident in Input Module. System Management:&nbsp; DSP based limiters for mechanical and thermalprotection&quot;.Any indicators on the wedge that indicate activation of the limiters for mechanical and thermal protection ?Art</blockquote>

[QUOTE="Art Welter, post: 146101, member: 52"] Re: JBL VP wedge failure mode Brian, You did not state whether the wedges were getting the same or different inputs. Assuming different inputs, perhaps the input used on the center wedge & replacement contained sub-sonic or UHF frequencies that trigger a speaker disconnect, when power is unplugged the circuit is deactivated, and audio then is passed until cap discharges. Going top be hard to duplicate unless the console (or outboard gear) itself is passing sub-sonic or UHF frequencies, in which case any of the wedges plugged into the defective output will react in a similar fashion. If the cause was upstream of the console, could be a bad cable (though unlikely) DI, instrument or wireless. "Signal Processing: DSP based, resident in Input Module. System Management: DSP based limiters for mechanical and thermal protection". Any indicators on the wedge that indicate activation of the limiters for mechanical and thermal protection ? Art [/QUOTE]

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