I had a set of CMX's (non Kick version) that I was running bridged at 210w a side, and they sounded great. I just made sure to be really careful with setting the gain pretty low on them, but they took the power fine. On 150w a side, you should be able to keep them hp'd at 80hz without any issues. The difference will be in how the gain is set.
they won't play frequencies lower than 80Hz. If you plan on running them with the passive x over give them a 150x2 @ 4Ohm at least. the passive x over takes away about 15% of the power, if i'm not mistaken.