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Well all right then...

I've been wondering if the Mini LF sections had been having effects on Macondo's LF channels by introducing some sympatheic resonances.  If you left the ports at just the 2" diameter by .5" in length, then the tuning would be roughly 95 Hz so Macondo LF would be 6 dB or so down by that point.  Perhaps it's nothing, but it seems unavoidable to me that they are not "ringing."

I have that "problem" with a piano in my place.  When I stop the music, I always hear a soft little harmonic reply from a damper-less Knabe.  Despite what most (all?) would guess, it's really not a problem and something that I am quite comfortable with.  I suspect that I would be unlikely to tolerate any of this kind of resonance at LF though....far to reminiscent of the Tacoma-Narrows Bridge.

LBJ

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