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Basic Question [message #25146] Sat, 07 February 2004 12:06 Go to next message
Dean Kukral is currently offline  Dean Kukral
Messages: 177
Registered: May 2009
Master
When you measure spl to determine if a speaker is "flat" or not, do you measure with C weighting or with A rating or what?

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Basic Answer - Frequency Weighting Curves [message #25147 is a reply to message #25146] Sat, 07 February 2004 12:52 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18677
Registered: January 2001
Illuminati (33rd Degree)
Neither. Both "C" rating and "A" rating are filtered response curves, having rolloff at the top and bottom end of the audio spectrum. Of the two, the one closer to flat is "C", but extremes are still rolled off, particularly at low frequencies.

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