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Post by JKCashin on Jun 19, 2021 21:24:12 GMT -5
I have three XPA-1L and a custom XPA gen 3, 4 high power modules and 3 stereo modules and I play this thing loud... why have I never tripped my main breaker (15A, 125V)... is this down to the dynamic nature of music meaning I never really draw "full powahhh" for long enough to exceed 1,850W?
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Post by audiosyndrome on Jun 19, 2021 21:59:35 GMT -5
Yes.
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Post by ttocs on Jun 19, 2021 22:11:43 GMT -5
The simple answer is, yes.
A partial explanation is that breakers can handle much more current for short to very short periods of time. Each breaker has specs for overcurrent. A "typical" 20A breaker for U.S. usage can handle about 35A for a few seconds. These overcurrent specs are on a variable sliding scale affected by several factors.
This overcurrent explanation does not necessarily apply to your specific situation though. All of those components can operate with the amount of power you are allowing them to have, meaning that they can all turn on without tripping anything so the inrush current needs aren't excessive, apparently.
If you had multiple Class A amplifiers your experience would be different.
I've tested my Krell as best I could and measured a little over 7 Amps of peak current from one channel in a 5 channel amp. My meter only scales down to 1 ms, so the actual peak draw is probably higher but for an even shorter period of time. When I measured with 2 channels active the current went up to around 10 Amps. This amplifier is designed such that when only 2 channels are active it puts out more power to those two channels, so when all 5 channels are active the power to all five is less per channel. The required wall outlet is 15A, but 20A is recommended.
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Post by JKCashin on Jun 20, 2021 0:06:38 GMT -5
Thanks for the explanation!
Turning them on is somethiong different... they are sequenced. And it's rather amusing when I do turn the sustem on.... click, pause, click, pause, click, long pause, click. For the first three clicks the lights in the house briefly dim, but they are LED, the lot of them, which are very sensitive to voltage drop. I can be in the office and know when my spouse brings up the system because of the three bumps in light level.
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Post by garbulky on Jun 20, 2021 0:39:28 GMT -5
I have two XPA-1 gen 2 amps, an A-100 and two tvs (one OLED), a PC and assorted electronics sharing two 15A outlets. I have tripped the breaker on one maybe two ocassions. But then again, I don't play loud usually. If I have to guess it would be the class A operation and the OLED which are sucking most of the power.
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Post by 405x5 on Jun 20, 2021 7:54:55 GMT -5
I have three XPA-1L and a custom XPA gen 3, 4 high power modules and 3 stereo modules and I play this thing loud... why have I never tripped my main breaker (15A, 125V)... is this down to the dynamic nature of music meaning I never really draw "full powahhh" for long enough to exceed 1,850W? It would be a rather extreme circumstance for home audio gear to pop a breaker. ……A nail gun could do it.
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Post by AudioHTIT on Jun 20, 2021 11:00:27 GMT -5
I have three XPA-1L and a custom XPA gen 3, 4 high power modules and 3 stereo modules and I play this thing loud... why have I never tripped my main breaker (15A, 125V)... is this down to the dynamic nature of music meaning I never really draw "full powahhh" for long enough to exceed 1,850W? It would be a rather extreme circumstance for home audio gear to pop a breaker. ……A nail gun could do it. Not mine … 🙂
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Post by 405x5 on Jun 21, 2021 8:59:12 GMT -5
It would be a rather extreme circumstance for home audio gear to pop a breaker. ……A nail gun could do it. Not mine … 🙂 View Attachment….show off!
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Post by JKCashin on Jun 21, 2021 18:03:52 GMT -5
I have three XPA-1L and a custom XPA gen 3, 4 high power modules and 3 stereo modules and I play this thing loud... why have I never tripped my main breaker (15A, 125V)... is this down to the dynamic nature of music meaning I never really draw "full powahhh" for long enough to exceed 1,850W? It would be a rather extreme circumstance for home audio gear to pop a breaker. ……A nail gun could do it. Especially if you shoot the nail at the right component.... I am thinking my POC TV.
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Post by 405x5 on Jun 21, 2021 18:13:59 GMT -5
It would be a rather extreme circumstance for home audio gear to pop a breaker. ……A nail gun could do it. Especially if you shoot the nail at the right component.... I am thinking my POC TV. The nail gun repurposed (I likes it)
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Post by 405x5 on Jun 21, 2021 18:18:53 GMT -5
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