In Reply to: I ditched this experiment and solved my problem ... posted by Jick on January 31, 2001 at 20:16:27:
I have a long/narrow room too.
Sometimes bass boominess is caused by overlapping resonances.
Measure the distance from the center of the woofer to floor, back wall and side wall. Those measurements should be as different as possible, no distance should be a multiple or even an even sub-multiple of the other. For example, 20 inches distance from woofer to the back wall and 40 inches from the floor is a NO-NO.
If possible, use assimetrical placement, at least make the distances to the side walls unequal.
Repeat the measurements for the bass reflex port, if present.
Also, use a Radio Schack sound meter and a Stereophile test record at around 70db, C weighting, fast, to look for the speaker position that has less bass resonances. I prefer the analog meter.
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