I did about an hour at the local Guitar Center with every FRFR monitor they had there.
These included the QSC K12 (which I had read on the internet were not very good) and a host of others including Yamaha, Mackie, JBL, Behringer, and many others that I don't remember the brand names of. I believe I tried 7-8 of them while I was there.
What I came to understand from that day is that the internet prejudice against the QSC K12 was totally unwarranted. It sounded better to my ears than everything else there.
Granted, it wasn't perfect, but it sounded better than everything else there to my ears - and I had basically made up my mind to buy something OTHER than the QSC K12 before I walked into guitar center. I was really surprised.
So a visit to Guitar Center and listen for YOURSELF is highly recommended.
I was also able to try one QSC K12 on a gig shortly thereafter and it sounded ok to me - but didn't make me want to spent the $1000 for it.
So I ended up not buying ANY of them from Guitar Center - and instead have decided to purchase a pair of the RCF NX12 SMA's which I will be ordering next week when I receive some funds allotted for them.
Why?
Even though the QSC K12's were the best sounding FRFR systems that Guitar Center had there, and even thought it sounded ok on a live gig, there was something about the high end on it that was a little 'fuzzy' to my ears (for lack of a better way to describe it).
I can't share how the RCF's will compare to the QSC's yet since I haven't even ordered them yet.
But from what I've read elsewhere on this forum (and other forums) they should blow everything else away.
Given my experience with internet forum's knowledge of FRFR speakers, I'm not going to hold my breath nor be surprised if they do NOT live up to my expectations.
But at least, I know I will have given my best shot at the FRFR issue. (Guitar Center did NOT have the RCF's there for me to compare with the QSC's). But the knowledge that I learned from trying those FRFR systems out there helped me tremendously in determining what I did NOT want.
I have to admit, I'm excited about getting the RCF NX12 SMA's though.
L