Operator`s manual

35 MIDI CHANNEL & VOL.0

A tip from the designer:

36 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 amp'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 amp 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 amp's master volume is muted. At values greater than or

equal to 5, the amp is back on line at the volume level determined by the currently

active Master knob.

Setting the encoding button to ON activates Master Volume Mute.

Setting the encoding button 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 amp functions remotely. Connect the Z-9 Footswitch to the amp

port using a cord equipped with stereo ¼" jack plugs. This MIDI-enabled foot board is a

custom design that switches every amp feature designated as footswitchable in this

manual. To learn if a given feature may be controlled remotely, refer to its description