Yeah, the Cyclones are pretty worthless above 50hz. Many people would run two sets of subs and only use the Cyclone for the bottom most octave.
Also; Don't do what Starky did //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif No offense Starky; you very well may like it just fine. But midbass does need to be in stereo.