I have to admit, if you can spare the cash, the K12 is a SUPERB speaker. IMHO, those units will do 90% of my gigs without a sub. I've done several gigs with only my K10s, but when I need to push them, the bottom end just doesn't punch hard enough. The QSCs are an excellent piece of gear. I'd love to be able to justify a new set of the .2s.
That's easy...Get rid of your old BOSE stuff that sits on the shelf most of the time, take that money that you made by selling it, and put it into a set of QSC K12.2! Also, sell any old lights that for sure make you no money whatsoever to add to the pile of cash you will have...Aren't I smart!