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S/N ratio (a-weighted) question


Mike Gibbens Matthew

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Not 100% sure what a-weighted is. Can someone explain to me what it is or at least what is a good rating?

Specifically, are these OK for a sub amp?

S/N ratio a-weighted: CEA-2006 1w >75db

S/N ratio a-weighted: Gain minimum >100db

07 KIA Spectra

320a Singer Alt

Odyssey Extreme batteries

2 12" Phantom sounds (4.6 cu. net @ 32) - soon to be 2 Atomic ELE

2 Rockford Fosgate T2500bd-CP

Zapco Z150.2

Front comps soon to be Hertz HSK

Pioneer 80prs

Second skin deadener throughout

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Weighted means the different components are assigned a value according to their importance to the measurement. Something more important has a larger impact on the result. Sorta like a final exam counting for a larger portion of your grade than a pop quiz. The "a" part means it's an average.

Signal to noise is pretty a self explanitory stat. It's the ratio of good shit (signal) to unwanted shit (noise). 100db means that the signal is 100db louder than the noise.

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