Trevoire520, this is tough! It could be either one for me.
Blind tests are always fun and a good reality check/eye opener.
The kemper have had me fooled many times when playing in the next room not knowing if it was the reference or kemper they switched to.
Some suggestions if you're gonna make us guess again in another video.
1. Don't reveal the answer so quick, wait a week or more.
Still, in these kinds of tests some will always pop in after the result is revealed and say it was obvious.
2. We can't help hearing with our eyes so it would be even more difficult if you used more colors and sometimes swapped the source order around so it could be kemper, amp kemper, amp, amp....... on the same track.
Or do what Lasse Lammert did in his first a-b blindtest and don't have any color at all. No one got it right.
This way the listener must guess at what intervals the kemper or amp is playing without color guide.
Cheers!