best thing you can do bud is buy speakers designed for motorbikes. you've probs noticed that a speaker being used outside sounds so much different (lower)from the same speaker being played inside (louder).
the only thing i could recommend is to have your bass in the seat as the vid shows. and maybe your mid/high closer to your ears. this is because bass is omnidirectional and can pass through objects but mid and high are not.
mid and high bounce off objects. this is why when you walk past a nightclub, you only hear the bass. but yea, you basically need to be smart with your speaker selection and positioning.
I was originally going to run slicks on my SV650 but I don't have a spare set of rims yet for rains, so DOT's it is. I ran the Supercorsa Pro's last year, which are the previous generation of this line of tire. We'll see how the new ones do. I've heard a lot of good things about them.
my friend slammed the phone outta my hands and it went flying onto some nice cement, chipped the chrome off all four corners of my EnV touch, but that all thank god....its so defective but now i might not be able to return it