I really like the QSC series. I have the K-8s and they are VERY powerful, enough to handle the size mentioned.
Things I like:
1.Great clarity (I run two in stereo, on the floor)
2. 6-year warranty
3. Very precise switches in the back for eq and volume.
4. Great power cables that 'lock' in.
5. Nice durable cabinets with a recessed back so my settings rarely change upon transport.
6. Place on the floor and I like the pads. I hadn't liked any other speakers on the floor, but this one is super with the 3-setting bass control.
7.Powered: More power than I'll ever need and I think they'd push 300 or so.
Cons: EXPENSIVE
Well, rambled enough. Just super happy with this system and had to share.
Good luck on your decision.
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Live: Korg PA4X/EV Everse 8s/Senn 935/K&M stand
Studio: Korg PA4X/Yamaha DGX670/Nord 6D73/Boss BR900CD/Tascam DP24SD/MTM Iloud/Sony C80/AGK 214/ATEM Mini Pro switcher/K&M stand