Room Acoustics question:

Depends:: and Depends.
If you're talking 'bare room' without anything in it, you can make it go either way. Lots of windows? Flat ceiling? Willing to install / tune room treatments?

http://www.marktaw.com/recording/Acoustics/RoomModeStandingWaveCalcu.html

above would be good place to start. You'll see that any room dimension of 1.5x another will produce same frequency results.
this is standing waves which result in loud/boomy or 'suckout' or lack of a specific frequency....some people will complain of 'lack of bass' in this case.

At over 5000ft3, it is a fairly large space. If you like it LOUD, you'll also need more juice or more sensitive speakers. Don't rely on a single sub, you'll need at least a PAIR, located asymmetrically.

Dynamite room,can do alot, I can't help,but you will do it with some R&D on the computer,its all here.....good luck,Bob

A great room for some big dipoles...!

Dave

Dave, are you saying that good bass will be hard to achieve in this room?

Thanks,

Adam

This room is an excellent size. See my system I am about the same size. You need treatments though but nothing really needed for near reflections of midrange/treble but you will need mostly stuff to tame the bass and mid bass - think large broadband bass traps and anything else you can get in there to absorb (plush furniture, bookshelves...etc. etc.). The modest sized space will mean that bass modes are very audible as everything will be well separated in time - unfortunately all the space will make remaining modal issues more noticeable as you have overall less masking.