Summary: I was looking for a new keyboard amp setup and these were highly recommended by everyone I spoke to. No one had any complaints and after trying them, I can tell you I see why. You can't go wrong with them for keys. Keyboards amps can't even come close. It's a matter of preference, but it came down to one of these and the JBLPRX612M. In the end, I liked the tighter bass of the JBL and the sound of my Yamaha pianos thru it.
Summary: These speakers are amazing! I tried mackies - which sounded thin and distorted at almost any volume, and the ev's - which were much better, but lacked the warmth and character that the qsc's have(especially with the 'deep' switch on).
Summary: The QSC K12 system is a really impressive piece of kit! Good looks, superb sound quality, loads of volume and great definition. I've used many small sized P.A sytems in my time and the 'K' series is pretty well hard to beat for the smaller set up. We use 2 x K12's with our Trio - Acoustic, Electric guitars, drums, 3 x Vocals and occasional keyboards and the clarity is excellent.
Summary: These speakers are brilliant !!!!!!! There are the clearest, crispest, warmest speakers i have every heard for the money !!! They are not the loudest speakers i have ever heard but if you turn them up full whack they will still make your ears bleed !!! I bough 2 1000w sub to go with the top and although it was a lot more money i feel as if it was well worth the money as the sound with all 4 speakers blasting is massive !!!!!