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SPL vs freq response

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Ivan Beaver:
I ran across this today while cleaning out some stuff.

I did this a couple of years ago, comparing simple SPL with actual freq response.

The purple curve is the base line, while the while curve is the active trace-to which the SPL number in the upper right hand corner is attached to.

There is also an RTA and SPLs for the RTA as a different test.

The last one is a sine wave

I thought it would be interesting to share

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