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<blockquote data-quote="Brian Bolly" data-source="post: 146110" data-attributes="member: 32">Re: JBL VP wedge failure modeArt,All 3 speakers were getting different inputs.&nbsp; All the wedge mixes were HPF&#039;d at ~70 Hz, console was the band&#039;s Soundcraft Expression 1.&nbsp; We can likely rule out subsonic, but I don&#039;t know about anything up in the UHF band.&nbsp; But the 3rd wedge I ended up putting on that mix, although a different mfg/model, did fine for the rest of the night.The only thing in this particular wedge mix were two vocal mics (SM58 and Beta 87) and an acoustic guitar on a Grace Design &#039;Felix&#039; pre.&nbsp; I can&#039;t imagine any of those are doing anything weird subsonically or ultrasonically, but I suppose it&#039;s possible with the Grace.There are 3 LEDs on the back of the wedge - blue (power), green (signal) and red (peak).&nbsp; Blue was on solid, green was flickering per signal level, and I never saw the red - the amp modules were relatively cool to the touch, and ambient temperatures were probably in the 60s as we were outdoors but under a tent.I&#039;m feeding all of this info back to the owner of the wedges to see if we can get any answers.&nbsp; I haven&#039;t heard anything back yet today, but we&#039;ll see what tomorrow holds.</blockquote>

[QUOTE="Brian Bolly, post: 146110, member: 32"] Re: JBL VP wedge failure mode Art, All 3 speakers were getting different inputs. All the wedge mixes were HPF'd at ~70 Hz, console was the band's Soundcraft Expression 1. We can likely rule out subsonic, but I don't know about anything up in the UHF band. But the 3rd wedge I ended up putting on that mix, although a different mfg/model, did fine for the rest of the night. The only thing in this particular wedge mix were two vocal mics (SM58 and Beta 87) and an acoustic guitar on a Grace Design 'Felix' pre. I can't imagine any of those are doing anything weird subsonically or ultrasonically, but I suppose it's possible with the Grace. There are 3 LEDs on the back of the wedge - blue (power), green (signal) and red (peak). Blue was on solid, green was flickering per signal level, and I never saw the red - the amp modules were relatively cool to the touch, and ambient temperatures were probably in the 60s as we were outdoors but under a tent. I'm feeding all of this info back to the owner of the wedges to see if we can get any answers. I haven't heard anything back yet today, but we'll see what tomorrow holds. [/QUOTE]

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