RE:Poor frequency response? Use transducers! (Score 1)

Putting bass transducers under seats or on floor joists will take care of the rumbles below 440Hz.

These are very cool little disc-shaped transducers that are starting to get affordable

Strategically placed, directionality does not seem to matter in the lower ranges (at least for me).

...Mo$eisley spaceport; you will never find a more wretched hive of scum and villainy.