Don't know if this helps as you're perhaps looking for just a power amp but I've been an avid Rivera fan for years and finally got around to trying my Kemper in to the power amp section on my Rivera Fandango 100 watt head. It sounded fantastic! The main reason I'd call your attention to is is the fact there's a focus knob with a 'pull warm' function that still operates whilst going direct to the power amp so you can 'tune the speaker' on the fly without having to adjust parameters in the Kemper. Great if you need to take off top end/ add extra warmth + all Rivera stuff is built like tanks, used them for 10 years in a covers band and never had an issue.