57 MIDI CHANNEL & VOL.0
A tip from the designer:
58 FOOTSWITCH: SERIAL AMP CONTROL PORT
Use this set of encoding buttons (1, 2, 3, 4 and 5) to assign the MIDI channel. This tells
the preamp's MIDI system over which channel it will receive MIDI program change
commands. Your choices are the standard 16 MIDI channels (numbered from 00 to
15), as well as OMNI mode (whereby all MIDI data is received regardless of the MIDI
send channel). The encoding button settings for a specific channel and OMNI mode
are listed in the following table.
Encoding button number 6 lets you program the preamp so that it is muted when it
receives a MIDI controller 7 command. When this command has a value of 0 (and less
than and equal to 5), the preamp's master volume is muted. At values greater than or
equal to 5, the preamp is back on line at the volume level determined by the currently
active Master knob.
Setting the encoding button S6 to ON activates Master Volume Mute.
Setting the encoding button S6 to OFF deactivates Master Volume Mute.
MIDI channel assignment using the encoding buttons:
MIDI-channel: S 1
S 2
S 3
S 4
S5
S6
OMNI
OFF
XX
XX
XX
XX
XX
CH 1
ON
OFF
OFF
OFF
OFF
XX
CH 2
ON
OFF
OFF
OFF
ON
XX
CH 3
ON
OFF
OFF
ON
OFF
XX
CH 4
ON
OFF
OFF
ON
ON
XX
CH 5
ON
OFF
ON
OFF
OFF
XX
CH 6
ON
OFF
ON
OFF
ON
XX
CH 7
ON
OFF
ON
ON
OFF
XX
CH 8
ON
OFF
ON
ON
ON
XX
CH 9
ON
ON
OFF
OFF
OFF
XX
CH 10
ON
ON
OFF
OFF
ON
XX
CH 11
ON
ON
OFF
ON
OFF
XX
CH 12
ON
ON
OFF
ON
ON
XX
CH 13
ON
ON
ON
OFF
OFF
XX
CH 14
ON
ON
ON
OFF
ON
XX
CH 15
ON
ON
ON
ON
OFF
XX
CH 16
ON
ON
ON
ON
ON
XX
As the table indicates, encoding button 1 switches between Poly and OMNI mode.
Bear this in mind for practical applications, because this is a fast way to go from a
preset Poly channel to OMNI mode and vice versa.
This serial data input accepts the Custom ENGL Z-9 Footswitch (optional), which lets
you control various preamp functions remotely. Connect the Z-9 Footswitch to the
serial amp control port using a cord equipped with stereo ¼" jack plugs. This MIDI-
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