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Post by Boomzilla on Apr 26, 2015 7:04:03 GMT -5
A quick, cheap experiment is to switch your XPA-1Ls OUT of "Class A" mode. Does the circuit still trip? bootman is right when he says that the amps draw full current ALL THE TIME when in "Class A."
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Post by AudioHTIT on Apr 26, 2015 10:32:22 GMT -5
A quick, cheap experiment is to switch your XPA-1Ls OUT of "Class A" mode. Does the circuit still trip? bootman is right when he says that the amps draw full current ALL THE TIME when in "Class A." Well that's only partially true. Since the 1L only delivers 35 watts in Class A, it can actually draw more power during loud dynamic passages when it's in A/B mode (either via the switch or because of automatic switching). Were it a 250 W Class A amp then it would draw 'full power' all the time. Certainly in Class A mode it draws more power over time (just sitting), than it ever would in A/B mode playing music. But that does not negate the recommendation to see if switching to A/B mode helps the situation.
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Post by Boomzilla on Apr 26, 2015 10:36:08 GMT -5
^^^Exactly right!
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Post by unsound on Apr 28, 2015 23:24:44 GMT -5
Sorry for the delayed follow-up, but I found out that all our breakers are arc fault (except for the 30a ones). Since the tripping hasn't happened in the last few days, I'm inclined to point the finger at arc fault sensitivity for now and continue to monitor it.
Thanks for all the suggestions!
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