Yamaha KX25 User Manual

Remove the checkmarks by clicking the 
check boxes of “All MIDI Inputs” 
corresponding to the KX MIDI Ports 2 and 3 
respectively.
“Yamaha KX-2” and “Yamaha KX-3” on 
Windows and “YAMAHA KX YAMAHA KX Port 
2” and “YAMAHA KX YAMAHA KX Port 3” on 
Macintosh correspond to MIDI Port 2 and MIDI 
Port 3 respectively. MIDI Ports 2 and 3 of the 
KX handle the messages generated via the 
operations other than keyboard performance 
such as operations via the CONTROL knobs 
and operations on the KX Editor of the 
computer. Removing the checkmarks 
corresponding to these MIDI ports will avoid 
accidentally recording non-keyboard data to a 
track in Cubase.

This is an example screen when using 
Windows. The corresponding 
Macintosh indications are “YAMAHA 
KX YAMAHA KX Port 2” and 
“YAMAHA KX YAMAHA KX Port 3.” 

Remove the 
checkmark.

Click “MIDI Port Setup.”

For data transfer via a USB cable between the 
KX and the computer, you can use three MIDI 
ports by installing the USB-MIDI driver. Each of 
three MIDI ports can handle the different MIDI 
messages as described below. 

MIDI Port 1: 
This port is indicated as “Yamaha KX-1” on 
Windows and “YAMAHA KX YAMAHA KX Port 1” 
on Macintosh. This port is used for data transfer 
of the musical performance such as keyboard 
performance (note on/off), Modulation wheel 
operation (Control Change) and Pitch Bend 
wheel operation. 

MIDI Port 2:
This port is indicated as “Yamaha KX-2” on 
Windows and “YAMAHA KX YAMAHA KX Port 2” 
on Macintosh. This port is used for data transfer 
generated by using the DAW REMOTE buttons 
(with the exception of the Cursor buttons, [ESC] 
button and [ENTER] button) and CONTROL 
knobs. 

MIDI Port 3:
This port is indicated as “Yamaha KX-3” on 
Windows and “YAMAHA KX YAMAHA KX Port 3” 
on Macintosh. This port is used for data transfer 
generated by operating the KX Editor on the 
computer.

NOTE

· When the MIDI Select parameter is 

set to “MIDI” (page 37) and the USB 
TO HOST connector becomes 
inactive, the data communication 
described above cannot be 
performed.

· When using DAW software other than 

Cubase, perform the MIDI setup 
manually on the DAW software so 
that MIDI Port 1 can handle 
performance data (such as note on/
off) and MIDI Port 2 can handle data 
generated by controlling the Transport 
function.

· When using DAW software other than 

Cubase, the MIDI messages 
generated by using the CONTROL 
knob will be transmitted via USB-MIDI 
Port 1. Also when using Cubase, the 
MIDI messages generated by using 
the CONTROL knob will be 
transmitted via USB-MIDI Port 1 only 
when the KnobOutSel parameter is 
set to “CC.”