Seems to be a LOT of questioning around here about Kemper w/poweramp & standard cab, vs, kemper direct to PA or FRFR cab.... I am a studio player only, but thought i'd offer up my advice. I have owned both Kempers powered & unpowered. I ran the unpowered kemper solely through a PA system, worked great.... I use my PA system as a sort of central sound system for all the devices in my studio, nearly like you would do with studio monitors... I have no doubts, that live, kemper direct to PA is awesome. That being said... I no longer play my kemper through my PA.... When I purchased the powered kemper I got a mesa 2x12 cab with V30's to compliment it... After all, what other reason do I need power for?? I mulled over getting an FRFR cab, but, I really just wanted my kemper to be like a real amp. You want it to sit on top of the half stack and look cool and look & feel like an amp should. I must say, I, personally am glad I did not go with an FRFR cab.... My mesa cab rocks, it looks cool, and it sounds awesome... Of course, I have it set so that cab sim is off going to the cab, but I also have a feed going to my PA where cab sim is on. If I want a truly powerful sound... I turn the volume up on the PA too and play through both...
So bottom line, for what its worth... If you want a real cab and don't want to mess with all the FRFR stuff, and just want your kemper to be like a normal amp, do not be afraid! Go for it, you're missing nothing..... I dont think an FRFR cab is any better than a standard 2x12 or 4x12 cab, get what you like, dont get all caught up in what's "best". They are all good options.... Of course, you wont be using cab sim much if you buy a cab, but really... Did you really care to try 5000 different amps through 5000 different cabs ANYWAY? Get a GOOD cab with good speakers, and its more about the amp than the cab...
Now... all I REALLY want, is a MATCHING cab with the kemper logo with V30's. I doubt this will ever happen though