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You should just connect the Kemper to the Mac via USB and then you wont need to use a USB stick unless you're updating software...
Also, How are you monitoring the output ?
what do you mean sorry?
i think i must have a faulty usb cable. 
You need this kind of USB cable:
[Blocked Image: https://p1.zdassets.com/hc/theme_assets/395267/200007687/beagle_man-usb-cable.png]
USB-A connects to the computer. USB-B connects to the Kemper.
Start the rig manager, be shure that you are connected to the internet. Use the kpa setted usb stick. See the stick appearing in RM. Drag and drop rigs you want into your stick. Open the stick in your mac or pc and search the folder shared. The rigs are stored here and you can copy it where ever you want. A direct upload from the RM to your computer is not possible. But by the way, why wouldt you like to do this? Just to store rigs on your computer? Thats the job of the RM.
Right. You can prelisten a rig with RigManager via the USB cable.
yes.double click in RM loads the rig via usb cable into your kpa. You can store it in the kpa with the store soft knob, if you like it. Normally you have to tweak it thats its sounds good to you. I never found a rig that sounds good with the first try, but when i have tweaked it, thats it fits to my PA Set up, they work very well, with the punch i prefer. Try it,
