I have an idea for a large tunable bass absorber. This is a large panel to be put on the rear wall, in an effort to reduce very low freq room modes. If the rear wall were to look like, or sound like an open window, lonitudenal LF room modes would perty much go away - I think. The plan is to build a large box with uncut 4' x 8' x 3/4 pltwood front and back and the sides would be dimentional lumber 2x8 or 2x10 or so to form an easily built box. Istall 32 cheep 12" (about $15 ea) woofers in the in the front of the box and wire them to a single pair of terminals. NOW I can wire a pot across the teminal and ajust the amount of acoustic obsorbtion I like. I could even put an LCR filter across the terminals to tune to a particular Freq.
HHHmmm ... I wonder if it would work?
