This is a 5.1 channel system designed to faithfully play back the source. Positioning is crucial as the reference drivers have phase-plugs. Although each primary driver is bandpassed to 90-2.5kHz, they are capable of reproducing the full range of audible frequencies as to not create artificial distortions due to its inherent frequency response. The primary two left/right channels have four active filters as well as amplifiers powering them. The two full range drivers are powered seperately from the tweeters to prevent distortion/interference from passive filters. There is a single 8" high excursion reference subwoofer in the system and can support a total of two subwoofers. It's size lowers its transient response time, creating cleaner bass while being more than capable of filling the room with bass.