Quote Originally Posted by Duffy View Post
...a lot of the waves are not going to have the space to fully form their waves before being reflected and atenuated.
Actually, the waves are fully formed right at the speaker (electro-mechanical to acoustic energy transfer). For a sound wave to gain amplitude (i.e., fully form) in free space, it would need some sort of energy input.
Sort of like when a bullet exits the barrel of a gun, it's going full velocity at that point and it won't speed up in the air on its own accord.

However, like a bass wave, a bullet can ricochet around and do all manner of odd things. But it certainly won't be going any faster.