Greg Ferguson
Legend!
So how do I decide between "PA" and "FRFR"? For the QSC Ks would you recommend 10" or 8" and any preference between the 8.2/10.2 or the older versions? Also, which Electro Voice should I consider?
"PA" and "FRFR" are marketing terms that are basically the same class of speaker system. Fractal says this in the manuals:
So, good PA or FRFR, are what you're after.
I think that 10" speakers are a good size for a guitar. We don't really need 12" speakers, though they're the de-facto standard in guitar cabinets, because their low end tends to clutter the sound on stage. 10" and 8" speakers tighten the bass response while keeping the highs and, if you've ever used a 2x10 or 4x10 cabinet, you'll know how punchy they are.
I'd go for the K version of QSC probably if I was to use QSC. I've heard the K12.2 used with a friend's AX8-based rig and they kick butt. They're basically FOH speakers, with a bevel on the back so they can sit at an angle if you want to use them as a floor monitor, but they only support one angle, which leads to…
I use the EV PXM-12MP stage monitors, which are pro-quality 12" speakers with a coaxial tweeter, various built-in EQ settings via a DSP, and about 700W per cabinet. I like them because they have multiple angles for setting them on the ground so I can have them at my feet firing upward toward my head, behind me firing at 90º like a typical backline cabinet, or even stacked vertically. I also like their size; I can carry two into a venue along with a guitar in my gig bag and the FM9 or FM3+FC6 in its bag… I don't want to walk too far doing that, but I have done so to avoid multiple trips. I would have bought a 10" version of them if EV made such a thing because it would have been a bit smaller and lighter.
Looking at the frequency response charts of QSC and the EV, they're close enough to flat response that either should work without any compensation in the modeler. I occasionally use a low cut on mine to compensate for stage rumble due to the cabinet shaking the stage but I never change the sound of the EVs themselves, instead, I leave them on their Monitor 2 setting which is very flat. It looks like QSC has an equivalent setting in their DSP.
I also mentioned RED SOUND's MF-10 and ELIS.8 cabinets. I had the ELIS.8 and they sound great and are definitely good choices on stage. @Marco Fanton helped design them and has many videos on YouTube demonstrating and/or using them live. They don't have built-in DSP or EQ curves, probably because they're going more for a guitar cabinet substitute. They do tip back but don't have the angles that the EVs have.
You should be able to find the EVs and QSCs in music stores here in the U.S. or North America. The EV might be sold by Dynacord in the rest of the world. I'm not sure about QSC elsewhere. RED SOUND is from Italy and G66 distributes them.