Before I make the plunge am I right thinking the SEAS Nextel W18NX would be the best speaker to play the 63Hz to 2kHz range? My Sub is a 15" Stereo Integrity and my tweeters are BG Neo3's. I want to bridge the gap with a single driver. I listen to mostly music like Dave Matthews Band, Norah Jones, Damien Rice ect. If there is a better suited or sounding speaker please let me know. Thanks