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<blockquote data-quote="Jason Lavoie" data-source="post: 125542" data-attributes="member: 159">Re: QSC CMX500Va Amp in Bridge mode problembut what did the load actually measure as? (without a measurement you&#039;re guessing and assuming there are no wiring issues)Which leg did you disconnect? why didn&#039;t you disconnect both if the problem didn&#039;t go away when you did the first leg?Yes. in bridge mode you&#039;re asking two amplifiers to work together to make a combined signal of twice the voltage, so if either leg is shorted to ground somewhere it can cause that channel&#039;s amp to shut down.I&#039;d suspect that one side of your speaker line is shorted to ground. does the problem go away when you completely remove the speaker wires?measure the load of your line, then measure impedance to ground of each wire.you can get away with one wire shorted to ground with a normal amp but not with a bridged amp.Jason</blockquote>

[QUOTE="Jason Lavoie, post: 125542, member: 159"] Re: QSC CMX500Va Amp in Bridge mode problem but what did the load actually measure as? (without a measurement you're guessing and assuming there are no wiring issues) Which leg did you disconnect? why didn't you disconnect both if the problem didn't go away when you did the first leg? Yes. in bridge mode you're asking two amplifiers to work together to make a combined signal of twice the voltage, so if either leg is shorted to ground somewhere it can cause that channel's amp to shut down. I'd suspect that one side of your speaker line is shorted to ground. does the problem go away when you completely remove the speaker wires? measure the load of your line, then measure impedance to ground of each wire. you can get away with one wire shorted to ground with a normal amp but not with a bridged amp. Jason [/QUOTE]

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