theplayer as Howard says above, you can use either A or B as long as when using A you have the input switch set to Line Level. By using B you remove the risk of accidentally having the switch set to Mic level.
Hi Alan, I don't know if I understand you correctly... you say dmattews is absolutely correct when he writes DO NOT run etc. But this is besides the point! I never do that, only when I first bought my profiler in 2014 and used this output for a passive speaker: Way too loud!!!
I think that both myself and dmatthews (comment in post #22) were responding to something you said in post #19. This may just have been a typing error but I am sure it the cause of the confusion.
But with my (2) powered K8's the overall volume is difficult to control, so I guess I have to switch to unpowered cabs like that Kabinet.
But can I keep using that mixer?
Before all of this I have been using only my passive 4x12 cab but couldn't get enough volume so that's why I turned to these powered cabs.
Is the unpowered Kabinet capable of producing enough volume on stage if necessary?
The Kabinet comes in two versions one is powered and one unpowered. You can use the unpowered with the speaker out of your powered Kemper but not with the line level output from your mixer. You can use the Powered version with either the Monitor Out of your Kemper OR the line level outputs from your mixer.