Few sounds in popular music are as luxuriously decadent as the soundscapes contained on Rick Ross’ albums. They evoke penthouse suites and fine champagne. Unfortunately, at Ross’ concert Sunday at the Sprint Center, the sound reproduction resembled a defective speaker in the drive-through lane of a fast food restaurant. The dismal sound quality was more than enough to spoil the concert. Even so, it wasn’t the evening’s only significant problem. Absurdly poor pacing and the ceaseless yammering of MCs between acts also tested the patience of the beleaguered audience. Approximately 3,500 fans paid between $50 to $100 to attend the…