Got my Kemper this past weekend and have been playing around with it every day. The problem is, and I've run into this issue with the Axe Fx that I also own, is that for my environment, an apartment, it just doesn't seem to work. For a lot of these profiles, they need a good bit of volume before they start sounding good. I play through JBL 305's. I usually practice/play when I get home from work at night, and I can't really push the Kemper's master volume past 0.3 on the gainer profiles. If it's a clean profile, I can get to about 1.5 on the master, but that's pushing it. Gain profiles I can only do 0.2-0.3, that is extremely low. Because of this, the profiles don't sound that great, but I do know when I crank them for a split second it sounds a lot better.
Unfortunately, I can't do this without complaints. I hate the way the unit sounds with headphones, and I personally don't like to use headphones when practicing anyways.
It's the same with the Axe Fx. I can't go past a small hair on the output knob, without it starting to get too loud for the space.
I feel like I can't use these units to their full potential. This is the crap that goes along with being an apartment dweller. Not very good for a guitarist.
At this point I feel like I may have to just return the unit and buy it again in a few years when I am able to purchase a home. Perhaps by then there will be even greater advancements and I can add large PA speakers to the setup.
Kind of bummed to be honest