06-02-09, 06:57 AM | #1 |
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Stereo power usage
How much power does your stereo need?
We have a Philips FW350C mini hifi system (2 tapes+3 CDs+radio). It uses about 15-18W when playing a CD, 12W for radio, but a whooping 10W when off!! That's a big phantom load, and since we use it for only a few minutes every few days it's usually unplugged. |
06-02-09, 08:30 AM | #2 |
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I've read and heard that car stereo systems also take little power (when you're not blasting a sub woofer). Interesting to see such a phantom load. What the heck does an amp need power for whiles it off?
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06-02-09, 12:31 PM | #3 |
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The clock?
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06-02-09, 02:08 PM | #4 |
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Look into TI's hybrid digital technology for efficiency. I actually built an amplifier based on that technology and at normal listening levels, it only uses one watt!
http://ecorenovator.org/forum/applia...ome-audio.html
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To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her... |
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