Well, I love big full-range towers, but my first system was the NHT SuperZero monitors + SW2P 10" 80-watt Subwoofer. I thought it sounded great as long as the subwoofer was on. With the subwoofer off, it still sound great and very clear. Of course, there was no bass, but it should still sound clear, not muddy.
Maybe there are other things to consider. Like speaker placement? Room acoustics?
Well, I guess the good thing with Aperion is that you can return those speakers with free shipping back to them if it does not work out. Good luck.
From looking at the Aperion B4 frequency graph, it appears the frequency response on-axis is 100 Hz - 20 kHz +/- 3dB @ 85 dB w/m, and the minimal impedance is 7 ohms.