Not sure how many KD-9 users there are on the list, but I wasn't able to get enough gain out of the input to be usable. The slider went to 20 when I calibrated things, but I'm still having trouble getting more than 1/3 scale on velocity.
I do see it in the unsupported, but working thread and wanted to see how widespread its use it
Low signal from Roland KD-9 Kick pad
Re: Low signal from Roland KD-9 Kick pad
eDRUMin should provide more than enough gain for that pad. You likely have a mechanical issue.