One sub or two?

Bass wave is simply frequency generated...and your listening position will be within a wave...which can be 20-30ft or more in dimension...point being...if one is already surrounded by a bass wave...the addition of another sub is not going to add or improve bass...unless you have an extremely large space...or a space with some odd configurations...the benefit of two subs could be applied to one superior one...just my .02...

Well...I sense some opposition.from my response already...but unless your living room is MSGarden...the addition of using two subs will be counter productive simply because the bass wave generated by one supb will be more than adequate...the benefits of two subs are in my experience being pushed by dealers

Crossing over at 40hz the bass wave is so large it is impossible to distinguish its location...however one has to have true full range output to do this...and a speaker either images well.or it doesn't...regardless of a sub