I suspect the Focus SE was interacting with the room. Did not listen to the XD. The Wavelet gives you the option to adjust everything from low bass up to high treble/brilliance (after the processing of the wavelet is compete). The guy who performed the demonstration for me also does some work in design recording studios and likes flat (which always sound "thin" to me, but from a recording aspect may be preferred. You can adjust the bass to treble to have a more full sound. So not so much the wavelet as the presets I described .I am a consumer. Aside from the wavelet correction I think there is definitely something to the open baffle design with an 8 inch mid and 10 inch midwoofer. That is a lot of displacement dedicated to that frequency spectrum. I am also starting to think that obtaining a clearer/more precise bass has an impact on the clarity of the mid range, what I would say is 1k hz to 5k hz. From my days of messing with reel to reels I always obsessed with the specs of the upper end of the frequency range, 20K hz +. Maybe that mid range, and clarity, is far more important.