HX3 Drawbar Expander 25
MIDI Control
HX3.5 accepts MIDI key on/off events (default: channel 1 to upper manual, 2 to lower manual,
channel 3 to bass pedals) as well as various MIDI CCs with selectable compatibility sets. MIDI
dynamics slightly affect key click noise. SysEx data other than its own is always ignored.
Both MIDI jacks act as MIDI inputs with equal priority for connection of two master keyboards or
keyboard and bass pedal. Connecting a third MIDI device requires a MIDI Merge Interface. The
second MIDI jack can be jumpered as MIDI out if required. See mainboard installation manual for
details. MIDI OUT transmits all MIDI CC controller data according to NI B4 standard, independent
of selected MIDI receive CC set.
HX3 functions that are relevant for the organ player may be remote-controlled by MIDI commands.
For details please see
“HX3 MIDI Implementation” on keyboardpartner.com, section
Support &
Download
. To recall presets via MIDI use bank select LSB (CC #32, changeable via menu). To
recall voices use program change on the respective channel.
General
Connect MIDI Out of your MIDI controller or master keyboard to HX3 MIDI input. HX3 does not
introduce any audio latency, so delays are only due to MIDI transmission.
Since MIDI is a one-way interface, HX3 cannot determine the setting of any MIDI controller value
until you touch/use it once. As default, all HX3 controllers are OFF. Do not use any controller
button or drawbar unless HX3 is ready to accept its data; it is a good idea to power up HX3 first
and later your MIDI master keyboard or master controller.
HX3.5 supports MIDI over USB through its USB port connected to a USB host, typically a PC. The
USB connection is also suitable for controlling HX3.5 by the HX35 Panel app, firmware updates
via MIDI SysEx, and DSP updates via DFU data transfer.
The USB port and MIDI IN 2 cannot be used at the same time. Please remove any cable from
MIDI IN 2 before using the USB port
.
MIDI CC #7 (default, CC number variable) controls master volume. MIDI CC #11 (default, CC
number variable) controls swell pedal/expression if no expression pedal connected to HX3. If you
use your HX3-attached swell pedal, any MIDI expression message will be overwritten. If the
attached swell pedal is not actuated, MIDI expression messages are accepted. Any valid MIDI CC
command will overwrite the HX3's own analog controllers and switches until they are changed on
the HX3 itself.
Note: Some MIDI controllers as well as organ keyboards (like Hammond® XK and SK series)
allow 2nd and 3rd harmonic percussion ON at same time. HX3 implementation regards "2nd ON"
as "Percussion ON" tab in this case.
Panic button
In case of stuck notes just press the upper or lower menu panel button to switch the tone
generator off.
