A regular loudspeaker speaker has crossovers in it. I'm sure you know what those do. I don't think a guitar has enough of a dynamic frequency range to make running crossovers beneficial and or necessary.
Think about it. A loudspeaker has to deal with percussion, and bass. Those produce a lot of lower frequencies where separating those out and sending them to a bigger driver helps. This helps to clean up the midrange as well as keeps those lower frequencies out of the tweeter which could cause physical damage.
I got an idea.
How about you go make one and give us your results. :D
[U]Ricks Current Mystery Video[/U] - Updated Monday March/02/2015