Again, look at the 1005 Vs 511 polar plots in the link I posted, it's much higher aspect ratio for 'fanning' over a large/wide distance, so better/'tighter' vertically, but since our hearing acuity isn't good vertically, mostly a moot point IME. Horns in general need to be at least ~10 WLs away IME, so the much bigger multicells are usually too big for most folk's homes. My original ~26 x 46 ft 'great room' was about right for the 805 and found that dual stacked 511s worked even better overall once tweaked till I built a huge ~63 Hz 1.5 way parabolic waveguide [WG] loadedwith the 511's dual 802-8A, 802-8G once critically damped.