You guys need to check out the new JBL PRX500 series of powered speakers.

I just recently switched to those and honestly they perform much better than my Mackie system ( 2 x sa1521 + Swa1501).

I also considered the Bose, and when I did a side by side comparisson between the Bose and 2 x PRX 512 + PRX 518 sub, JBL was clearly the choice.

Bose is nice for smaller audiences, but lacks that powerful sound that JBL has.

I personally think that the Bose is way overpriced for what it offers. I purchased the JBL package for $2600 , where I could have bought only one PAS system for that money.

Here is a link for the PRX series with built in CROWN amps :