MIDI Channel A
The MX400 is equipped with two MIDI receive channels, Channel A 
and Channel B.  MIDI channel A is the channel used by all MX400 
Configurations: Surround, Stereo, and Dual Stereo.  Any program change or 
CC messages sent to the MX400 on MIDI Channel A will be processed by the 
active program.  Channels can be set from 1-16, All channels, or Off.  Use 
Knob A to change MIDI Channel A settings.
Note: In Dual Stereo, there are always two programs active.  The program 
shown at the top half of the Main Display on the program screen is the 
program that will respond to MIDI Channel A messages.
  MIDI Channel B
The MX400’s MIDI Channel B channel is a separate channel utilized when 
the Dual Stereo Configuration is selected.  MIDI messages received 
on this channel control the program shown in the bottom half of the Main 
Display of the program screen.  Channels can be set from 1-16, All 
channels, or Off.  Use Knob B to change MIDI Channel B settings.
 
MIDI Clock Sync
The MX400’s MIDI input is able to receive and synchronize delay times via 
MIDI clock messages. When set to On, Tap Tempo is changed by incoming 
MIDI messages. (The Tempo button on the front panel will be disabled 
while these messages are being received.) When set to Off, the unit ignores 
MIDI Clock messages.  Use the Knob C to change MIDI Receive 
options.
 
   
  MIDI Program Receive
The MIDI Program receive option lets you enable or disable the MX400 
from receiving MIDI program change messages.  When MIDI Program 
Receive is set to off, it filters all program change messages so that the 
MX400 will not respondt to them in any configuration (Surround, Stereo, 
or Dual Stereo).  MIDI CC messages are still received even when this option 
is disabled. Use Knob A to change this option.
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MX400 System Menus
MX400