Summary: When plugging in direct with iPod sound is flat and same with direct plug in for mic. I run my dj system to the speakers and they sound good. The bass sounds good but you need to put it on boost and switch the EQ almost every song. Played " Ghostbusters" last night ( by request ) and at 3/4 power and volume at 5 the speakers peaked! I used to have JBL EON's and the sound was better they didn't have the bass but they didn't peak for lame 80's songs either.
Summary: I owned a pair of these and thought I would buy another set so when I DJ at large establishments, I would have phenominal sound! These speakers never disappoint!! I use for of them and 2 Electro Voice subs and they rock the house! I would recommend these to any DJ!!
Summary: I Purchased (2) K12's about 3 months ago and then a Ksub about 2 months ago. I haven't gigged them much and have been really careful with them, as they're not cheap. One of the k12's went out and I had to ship it to QSC for service which cost me $80. Now my Ksub has an issue where it just cuts out and resets itself for no reason. NO telling how much its gonna cost to ship that. Very disappointed in these products.
Summary: The one thing that impressed me about the QSC K12's was the sound and WEIGHT! Being a former owner of a pair of Behringer B415 DSP's, it took me a lot to jump to the QSC brand. The sound was phenomenal! At 1000 watts, the tops did the job. I have them paired with my Behringer B8100 18 inch subs and the sound great. The Behringer tops were about 75 lbs./piece and the QSC K12's are 40 lbs./piece! That was a big selling point for me.
Summary: Stunning Clarity Compared to other components in my sound system, mostly wood boxes, the clarity and fidelity is a distinct difference in class. If you are looking for a loud, clear, no distortion box that is easy to move, set up and dial in, look no further. I use a DriveRack PA or 260 with a non-QSC 18" powered Sub (each side). I regularly get questions like: "Why is that so clear but not too loud?" or "Will you do sound for my band?
Summary: As is the case for many people entering into "financial maturity," I found that my parents were right: your "rap sheet" will be your reputation, not today's intentions. As much as I've proven that I will faithfully pay for what I attach my name to, my financial history is longer on the negative side than the positive one. I already own a QSC K12 and fell in love w/ the speaker 4 mos. ago (which I use w/ my Korg Triton Studio).
Summary: The QSC K series are awesome speakers, with great input and output options. The quality is high-end, audio quality is perfect. The only thing i would suggest as an improvement is a smooth gain knob instead of a stepped gain knob. I understand the process behind stepped so that multiple speakers are set at the exact same gain, however when using only one speaker, have set gain levels or steps can be a hinderance.