Well...Bass isn't one for being "deflected"...thats the beauty of it is that it is non-directional like coax. You won't divert the bass waves, you'll actually just absorb some of them...remember that the bass wave is MASSIVE...talking 5-20 feet depending on the Hz so if you bounce the wave back to the woofer within a few inches you are going to cause phase cancelation and out of phase noises...its similar to when someone faces subs to the cabin of a car with the subs inches from the back seat...have them turn it around so that the waves are having "fun" in your trunk and you have a MUCH cleaner hit and reflection of the waves, since the deflected waves from the back of your trunk are reaching nearly 5-6 feet back to the woofer almost creating the wave.