Quote:
Wayne A. Pflughaupt wrote:
Are you talking about phase or polarity? I believe phase is more-or-less a time alignment issue – not sure you one could make it “oppose.”
Regards,
Wayne
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Perhaps polarity is the right way. Here's what I'm thinking. Run the second sub through a bandpass filter with center frequency the same as the room resonance. The second sub would have the polarity inverted. Sorry I don't have a second sub to try.