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Minimum power ratings

I've always thought the minimum rating was the manufacturer saying "use at least this much if you want to ENJOY the sound of this speaker. You simply won't have enough power to get decent volume and transient response on music with less".

To support this view, I note that quite a few manufacturers offer a set of recommended minimums based on room size. The only reason room size can make a difference is listening distance and the way sound pressure level falls off with increasing distance.

My feeling is that the minimum recommendation is based on some expectation of what the average listening level will be at the listening position plus an allowance for the power required to respond to whatever the manufacturer regards as a good figure for transient peaks above the listening level.

David Aiken


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  • Minimum power ratings - David Aiken 14:38:16 08/25/03 (0)


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