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I've got some M-Audio AV40s at home, plugged into a power strip that includes a mac mini and an LCD monitor. If I plug the power strip into a power meter (like a kill-a-watt, except I live in NZ so I have a different brand that can handle 240V), I might observe the following:
- Speakers off: 20W
- Speakers on: 15W
Why does turning the speakers on save me five watts?
The meter also records the power factor as 100 in the first case and 95 in the second, but I don't know what that means.
What are the readings if the speakers aren't plugged in at all? – retracile – 2009-08-18T02:54:08.643
1agreed... maybe your internal speakers are now turned off? – RiddlerDev – 2009-08-18T02:57:38.013
@retracile: Same as when they're turned off. @IPX Ares: This is when the mac is asleep, so I wouldn't think the internal speakers are doing anything. – John Fouhy – 2009-08-18T03:00:42.033
2You should have people pay you to turn your speakers on, and use your 5 watts. – Noam Gal – 2009-08-18T06:32:10.503
Does your killawatt read zero for other appliances that are turned off? If not, faulty unit. – Kent Boogaart – 2009-08-18T15:55:14.837