Steve, your room does appear to suck less than certain others, and Mark Johnson will indeed want to contact you for advice. Presumably you spent thousands of dollars and/or hundreds of hours of your time to reach this stage.

Okay, seriously, use the single band parametric EQ on that area around 30-35Hz, which may be a result from the modes of the 17-19' room dimensions.

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Enjoy the music, not the equipment.