Re: New Ascend Acoustics true full range tower speaker. "The Challenger Deep"
The way to add gut rumbling thunder is with a Rythmik subwoofer or two. Running loudspeakers full range doesn't make a lot of sense to me because of the power requirements of really low frequencies and because of the interactions of the room. The room plays a bigger part in how you hear bass than the driver does, so the PEQ on a plate amp as well as the ability to do room correction and other kinds of DSP on a subwoofer make it far more advantageous than making one giant monstrosity of a speaker with elevated bass response.
Most importantly is that the best place to have a low frequency driver is rarely the same spot as where the left and right speakers are. With your left and right speaker you want to abide by the golden triangle rule, but with subwoofers it's better to have two at the quarter points of the wall your speakers are on, if you're in a regular room, or in some random spot in your room if you have an oddly shaped room.
As much as one would love to just go full range all the time, it really isn't the best way to get the best sound out of your room.
The only thing I would do to improve my system is put it in a better room (two months away, my house is being framed right now) and maybe build a subwoofer system for that room with 18" drivers in the corners of the room with some kind of Dirac room correction system.
Dave could speak to what that driver compliment would require as far as a crossover, but I think that smattering of ranges of drivers would require a totally insane crossover to sound alright.
-Alex
PS4/Nvidia Shield --> Emotiva XMC-1 --> Emotiva XPA-5 --> Ascend Acoustics Sierra Towers and Horizon Center w/ RAAL tweeters (L/C/R), HTM-200 SE (Surrounds), 2x Rythmik F12 subwoofers