Kawai MP9500 Owner's Manual page 60

The structure of Only for Sound
single #1, single #2, single #3 ..... single #63, single #64
The format of one single
cutoff 14-64-114 (-50-0-+50)
efx_rate 0-127
efx_send 0~127
rev_type 0-6
rev_rate 0~127
rev_send 0-127
60