Owner's Manual 444
Controlling the 444 via MIDI
Surely all the control functions of the paragraph
'controlling the 444 via front panel'
(see page 10) pertain if
you control it via Midi. But it offers some options beyond....
Checking and setting the MIDI Channel
By pressing the MIDI CHANNEL button, the display will show the currently active MIDI channel. This is
indicated by an additional decimal point at the lower right corner of the display for only a few seconds
before the display switches back to the MIDI program number.
To set the MIDI channel, consecutively press MIDI CHANNEL for a short period of time. The displayed
number counts up to '16', and starts again at '0'. Stop pressing MIDI CHANNEL if the desired MIDI Channel
number is reached. '0' stands for 'all channels' or 'omni mode'.
As soon as the display switches back to the previous state, the MIDI channel is saved to the non-volatile
memory of the 444.
MIDI Program Change
The 444 offers the possibility to save up to 99 presets of different amplifier / cabinets combinations.
You can switch between presets by sending MIDI Program Change messages from your MIDI foot controler,
or any other MIDI device connected to the 444's „MIDI IN“ connector.
To save a preset, send a MIDI Program Change message of the desired preset number. The switcher status
saved with the preset number is called, and the preset number is shown in the front panel display.
Note that the 444 starts counting the presets at „1“, even thought the MIDI standard internally starts at „0“.
The reason we did this is because almost any MIDI foot controler start counting the foot switches at „1“ as
well.
If the preset is now changed by the front panel controls, the SAVE knob starts flashing. Press SAVE to save
the current status to the preset.
To protect your amps, a preset can not be activated if at least one of the cabinets saved with the preset is
not connected to the 444. In that case the display states the message (n.c.)!
MIDI Control Change
All front panel controls can additionally be remote controlled by MIDI Control Change messages.
In contrast to recall presets via MIDI Program Changes, every Control Change message switches only one
function at a time. You might have heard people saying „Direct Access“, that's what is meant by it. See
„Control Change messages table“ for a detailed description of the 444 Control Change messages.
MIDI Control Change modes
Even though Control Change messages only access one function at a time, some people prefer programing
presets of several Control Change messages inside their MIDI controler, instead of sending Program Change
messages to access a preset stored in the 444.
Some MIDI controller such as the RJM Mastermind GT offer the possibility to send Control Change presets in
an „intelligent“ way. That means CC messages are sent to switch the currently selected amp or cabinet off
before switching on another one. This is important due to the 444s certain rules and orders for the switching
process to protect your amps from any damage. (see „switching rules & protection).
Choose the 444s Control Change mode '0' for operating with such midi controller pedals.
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