Unfortunately I am unable to listen to these two sets before I purchase them, so I need your personal input to help me out...I cannot decide between the Alpine SPX177R and the MB Quart PCE-216 components...If it helps, I listen to rap and rock, and am wanting great SQ..Please let me know the differences in sound/performance between the two and also what each sounds like to the best of your ability....Thank you for any advice or information..