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Audio Amp Help Answered

I bought a small audio amp, and i am trying to make a high quality boom box type device, for my mp3 player, however i am not sure if i should use a speaker that is a higher wattage than the amp is rated for, or lower.  The amp provides 15 watts per channel, for two channels, so 30 watts between the two channels.  I have a few extra 100 watt sattelite speakers, could i use them?

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Re-design
Re-design

Best Answer 11 years ago

THe speaker should always be rated higher than the amp.  Otherwise you risk burning out your speaker then you have to start over.

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snowluck2345
snowluck2345

Answer 11 years ago

ok, i was worried because i read somewhere that if you use a to high wattage speaker it can blow out the amp, as it will allow the amp to provide more wattage than it is meant to supply, because their isn't enogh resistance.

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Re-design
Re-design

Answer 11 years ago

The amp is looking for a certain impedence on the output.  2,4,8 or 16 ohms.  Your speakers should match the amp.  The impedance has nothing to do with the power rating.  Usually the rating is 4 or 8 ohms.  The speakers should be marked as to what they are.  You can't use an ohm meter to get the impedance since it's not really a resistance.

Here's a good article about speakers.  Read it over and try to understand the main part.  Don't worry if you don't understand all of it.