[Dr. Vibes]

I have a malletkat express. I have this situation, the lower C and higher C sounds louder compare to the middle octave. How can I fix that? Thanks

[pljones]

Have you tested this with velocity tracking turned off?

Have you logged MIDI output to see what the response is like (i.e. with velocity tracking enabled again)?

Have you tested with different instruments?  If so, which?