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- Jun 10, 2018
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My room has a mode at 180 hz. REW tells me it needs -7 db 4.9 Q of correction. I put this PEQ in Equalizer APO and measure again. REW tells me I need another 2 db of correction. What's happening here? Should I use -7 or -9 db? Is this something like quarter wave cancellation where EQ doesn't work?