Mel,
My quest is to experiment with ways to use rooms and/or speakers with
difficult resonances. If, for example, a speaker box that might be a
little too small for the speaker
Trying to use EQ for this is futile because room resonances have a
time-based component that EQ cannot counter. Some DSP designers have tried
to attack the time part too, but they have failed so far. See my assessment
of one popular (and expensive) DSP device that fails to live up to its
claim. There's a lot of technical advice and info in this article that I'm
sure you'll find useful and relevant:
http://www.realtraps.com/art_audyssey.htm
--Ethan