Kawai MR370 Owner's Manual page 10

When the function is first activated, the keyboard is split at the
point marked with a triangle on the front panel, and LOWER
keyboard assumes the WOOD BASS timbre.
The FULL ORGAN, HARPSICHORD and VIBRAPHONE
cannot be selected as lower tone colors. Conversely, the
WOOD BASS, ELECTRIC BASS and SLAP BASS cannot be
selected as upper tone colors.
The LOWER timbre specification remains in effect until the
power is removed or the timbre is changed.
Switching from DUAL operation to SPLIT operation makes the
UPPER keyboard assume the right timbre and the LOWER
assume the WOOD BASS or the tone you chose for the
LOWER timbre.
You must turn the SPLIT operation off before you can return to
DUAL operation.
To change the SPLIT point, see p. 8 "Changing the SPLIT
Point".