# Max handling power for a 10w speaker resistor [closed]

I have been told that a non-inductive or inductive resistor used for speakers can only handle 10 watts if it is a 10 watt resistor, which makes no sence because they do use even 5 watt resistor in a 160 watt setup. So my question is how do I know how to tell how much they can truly handle before failing or what is the general rule on how much they can use?

## closed as unclear what you're asking by uint128_t, PeterJ, Bence Kaulics, placeholder, Brian CarltonMay 30 '16 at 20:10

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• A 10 Watt resistor can handle only 10 Watt. That does make sense. And when a 5 W resistor is used in a 160 W speaker it means that the maximum power dissipated in that 5 W resistor will in practice be about 5 W. Because it is a 160 W speaker does not mean all that power goes into that resistor. Some 5 W resistors can handle 160 W but only for a very short time. – Bimpelrekkie May 30 '16 at 13:16
• You hardly want your 10W resistor to fail when you feed it 10.001W – PlasmaHH May 30 '16 at 13:35
• I've never seen (or heard of) a 'speaker resistor' but I have measured the resistance of a speaker. The speaker coil should be considered an inductor with resistance rather than a resistor. Just measuring its resistance isn't the full story. Also, be very careful when reading the literature - manufacturers tend talk up their product using to statements like 'music power' and 'peak handling power' rather than continuous rms power at particular frequencies. BTW power burn out is not the only failure mode. – JIm Dearden May 30 '16 at 13:51
• I think you need to explain what you think a speaker resistor is. – pipe May 30 '16 at 16:41
• What I mean by a speaker resistor is a wire-wound or a non-inductive. sorry... – Ljk2000 May 31 '16 at 0:26