If you're mounting vertically get the M80, if you're going horizontal, get the VP-180 - they are designed for those orientations respectively. They are after all more or less the same speaker with altered driver arrangements and crossovers to suit the intended orientation.

Good luck on the upcoming bar exam!

Last edited by cb919; 04/13/11 09:40 PM.
Dan
On-Wall M5HP LCR, QS8 & EP500 in 7.1