Mr. Chesky's -6dB minimally controlled sub-bass speakers are extremely forgiving of room placement simply because they don't output frequency low enough to excite a rooms bass modes.
A properly positioned and optimized -3dB subwoofer can provide the delicate subsonic presentation for almost half the price. Some offer remote dsp control and a few customizable presets to compensate for Cheskey's or your own personal taste. Way more fun.