I play high gain (Sevendust-Killswitch, as well as a lot of 80's-90 metal..)..Irun my powerhead through a 412 V30 cab, right along with my other guitar player(Boogie MKIV head and recto 412)..I profiled the MKIV and just end up tweeking it in real time when we're both playing..No problem , just use the monitor EQ (..this leaves the mix to the board or direct recording untouched..).. I end up adding a little bass, but turn the presence down to 9Oclock, and the treble to 10 oclcok..this gets rid of some of the harshness and "Ice-picky" sound you can get from SS vs tube....SLIGHT tweeks of the EQ beyond that and you should be good. Don't be afraid to crank the Kemper as it does sound better the louder it gets. Of course, the profile has to be good..there's A LOT of "Meh" profiles in the Kemper and the user group/share page.... The differenc ebetween those, and payiing $50-75 for some 3rd party ( STL Tones, CILLILABS, and Josh Middleton are a few good ones), and the "free" profiles is live and loud with the band...ALLthe way there so to speak. Hope this helps.