I have set up, started a recording and walked all over the room and can't hear any noise cancellation. I know that in theory it should be there, but in reality if I can't hear it, I guess it isn't noticeable.
Although some sounds are panned center, including voice, many are panned left or right to varying degrees and therefore shouldn't be affected unless they happen to share an exact same wave length.
Could it be that noise cancellation is more noticeable on conventional speakers than it is on the line arrays?
I do recall having two passive speakers in my club, where it was necessary to move one of them a little because of this factor.
If I were regularly playing for more dancers that want to really feel the thump, then conventional speakers might be more in order, particularly, as Fran noted, if you wanted the sound level to fall off.
And, despite what the manufacturers say, there IS some falloff. It is not as loud at the end of the room as it is ten feet away. However the sound throughout the room remains at a listenable level much better with line array.

The bueaty of the line arrays is the clarity and dispersion you get. I've used combinations of (1) JBL EON One ( just did a brunch at a CC ), two for larger events and STEREO !, ( last few weeks I've been playing Christmas music for the merchants in Bluffton's shopping district OUTSIDE !. Never had so many people compliment me AND specifically my sound system. ) and just last week used two with my small Behringer sub for a DJ dance party in a bowling alley where I had to do a bunch of Hip Hop.
My keyboard never sounded better and singing is so much easier with the clarity and coverage. No monitor needed.
I will never go back to speaker "Boxes" again.
Get two JBL Eon Ones, and enjoy. Your back will like them too. You will be very surprized by the sound quality over conventional speakers and Yes, you can always send them back but I bet you won't.

+1

It was many years ago when Fran and I went to see Uncle Dave Boyd performing in an Italian restaurant, one that was an incredible challenge for any sound system. Dave was using his Bose L1 PAS system, one that he had recently put into service. The restaurant had a horseshoe, circular shaped bar in the middle, and two dining rooms off to each side of the bar, separated by half walls for about 1/3rd of the length of each. It was an extremely large venue, Dave was situated on a small stage just a foot above floor level, the place was packed, and he was just four feet away from the nearest patron.

Fran and I were situated in the west dining room, behind a wall and could not see Dave at all. However, I could hear him performing very well, yet we were able to hold a conversation at normal voice levels. The quality of the music was incredibly crisp, clear and clean. You could clearly hear every instrument of the keyboard, both style and right hand, and the realism was absolutely incredible, yet we were situated more than 70 feet away, partly behind a wall. I was really impressed. That 10-inch sub was more than enough to provide all the bottom end any venue I've attended would require.

I got out of my seat and walked throughout the entire venue, the volume was pretty much equal throughout, yet it was never overpowering and quite comfortable at any location in the entire restaurant. The clincher was when I walked up to the stage while Dave was performing a light rock song and singing. As I approached closer and closer, the volume did not get louder. In fact, I actually placed my ear against the sound column and the volume remained constant. I was hooked, and called Bose the following morning and ordered an identical system.

At the time I was using a pair of Barbetta Sona 32SC powered speakers that I had purchased just 6 months earlier in a music store that was only a few miles from where UD was performing that night. They were a bit step up from the insanely heavy Peavey SP5Gs I was hefting onto poles two years prior to that. As I said earlier, I have owned more than a dozen of the top brand conventional sound systems prior to the Bose. At the time, they all sounded great, but they were all pale in comparison to the Bose.

The only reason I sold my Bose L1 PAS system was the total weight was 92 pounds, about 30 pounds for each segment. When I switched to the Bose L1 Compact, I knew that there would be some loss of overall quality, but in reality, the difference was insignificant because I was performing to smaller audiences, usually just 60 to 100 ppl at most, therefore I didn't really need the power of the PAS system.

Now, I, like DonM, have never experienced problems with phase cancellation when using 2 systems in stereo, and because I was warned this could be a problem, I checked for this at every venue where I performed. I remember Scott Yee talking about this, especially using his Yamaha piano voices, which are heavily, stereo sampled. I created a mono piano voice that many individuals on this and other forums have downloaded, which I felt added a lot more depth to Yamaha's piano voices. Other folks, apparently, agreed.

Now, I know Fran will not purchase anything unless it has the Roland trademark boldly imprinted on it. That night, though, while listening to UD perform, I think he was quite impressed as well, but would never admit it in public. Later that evening, Fran and I went to see Donny performing for a large crowd in Brick, NJ, where the dancefloor was packed to capacity and he had a pair of monster speakers perched on poles. For those of you that have been here a while, you know that DNJ changed sound systems as frequently as some folks change their socks. The next time I saw him performing, he had a Bose PAS. Six months later, while I was cruising around the country in my van, I saw Don Mason on stage with a Bose PAS. 600 miles to the southeast was where Eddie Shoemaker (Btweengigs) was on stage and wowing his crowds with Bose PAS. When I got back home, I was at my Daughter's church where 4 wall mounted PAS towers filled the 600 seat church with incredible sounding music from the church choir and band.

I guess my point is, line array systems have been around for quite a while and while they were initially used in large theaters, they have, IMHO, really changed the world of small band and OMB performers by providing us with incredibly clear, crisp, wonderful sounds, with outstanding dispersion at lower volumes that we were never able to achieve with our older, conventional sound systems of years past.

Fortunately, I'm now retired and no longer shopping for a sound system. But, if I were, I would do the same thing I did so many years ago. Jump in my van, get the kids to watch the cat, and Carol and I would spend a month driving around the country listening to dozens of Synthzone and PSR Tutorial performers, live and on stage. Hell, I would even drive to New England to hear Tony.

As I said earlier, good luck on whatever you decide upon,

Gary

I know nothing about QSC but I believe Frankieve is or was a dealer. Give Frank a call and he’ll give you his experience with them not only as a dealer but as a musician.

http://audioworksct.com

203-876-1133

Gary, I hope you are getting a commission from BOSE because you certainly spend a lot of time 'selling' them ...
I don't think anyone 'put down' BOSE or other line array systems - at least, what I was saying was that there could be applications where other types of speakers might work better ...
And yes, Fran may be a Roland guy, but I know someone on this forum who thinks Yamaha and BOSE are the 'be all and end all' ...
And come up anytime ...

Thank you everyone for all the responses! Ive decided to rent them and try them out first and see how they fit my needs and how they sounded with the Genos. So far the salesman at GC is telling me they are the best but hes probably just trying to make a sale. Thank you all and have a safe Happy New Year!

I don’t have the K 12.2 but the K 8.2. I was looking into buying the RCF TT08-A – an 8 inch speaker $2,000 each, but a guy who owns both QSC K8.2 and the TT08A says the K8.2 is 80 % of what RCF can do. I never liked the 1st version of the QSC K series. Too harsh. The 2nd version seems to be a big improvement as many say in comparison with the 2nd version. Prostar Audio was a having an 18% sale just about across the board. So I purchased the K8.2. Solid sounds. I use it along with my Centerpoint Stereo Spacestation V3.