I have to Behringer powered monitors that I want to hook up for profiling fine tuning, I see the diagrams show these from monitor to mixer to speakers.
Can I run them with the speaker power off .........from the mains out and control volume in the Kemper powerhead? 
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No.
The inputs on the Behringer speakers are Line Level inputs, NOT Speaker Level inputs.
Thanks Paul
I had to power them up, then control the mains volume....
Worked great but couldn't A/B when profiling as I think I have to be on Monitor out to pull that off....
Sounded good though.
Back to the books! 
