For those of us that use the Bose PAS every day, phase cancellation has been a NON-ISSUE! I couldn't hear it, and no one I know of that uses the PAS regularly has ever said anything about phase cancellation. Keep in mind that Scott Yee highly recommends the Motion Sound KP-100 and KP-200, both of which I've found provide the worst sound of any amp I've ever owned. I have a KP-100 for a backup amp that rides in the van all the time--just in case of an emergency. Even after changing the speakers to those recommended by Scott, the KP-100 still sounds just plain awful.

As I said earlier, Bose and Guitar Center, will both allow you to try the system risk free. Try it out. If you and your audiences don't like what you hear take it back for a full refund.

Good luck on whatever system you decide upon,

Gary

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Travlin' Easy