Write/Copy, Mute, Swm Led - Engl INVADER II Operator's Manual

MIDI or the Z-9. To learn how to do this, see section 36 and section 46, page 20 in the
Rear Panel Features chapter.
34 Master A/B
Switches back and forth between the Master A and Master B knobs. The LEDs next to
the knobs light up to indicate which Master knob is active the red LED for Master A , the
green LED for Master B MASTER A/B . can also be switched via MIDI program change
or the ENGL Custom Z-9 Footswitch .
A tip from the designer:
Here's a nifty option: Use Master A and to set two different power amp levels and B
access these as you wish in tandem with the preamp's eight channel and Gain
combinations. You can easily program combinations of different Master A/B ,
Channel 1 to and Low or High Gain (19) settings to different MIDI presets. Then you 4
can conveniently access these configurations on stage using a MIDI footboard (for
example, the ENGL Z-9, Z-12 or Z-15). This gives you many variations of the
fundamental sounds for different playing techniques and musical situations.
Channel 1 or Channel 2 is your first choice for clean and even grittier rhythm and lead
work. Take advantage of the preamp saturation in Channels 3 and 4 for power
chords and leads at diverse gain and volume levels. Try working your guitar's volume
knob to extend your range of tones and musical expression. If a MIDI control unit and
controller commands are available (for example, the ENGL MIDI Footcontroller Z-15)
you can use the Amp Mute to silence the power amp quickly and conveniently for
short breaks or to swap guitars.
35 Write/Copy
Press this button to store the modified setting of a programmable feature to a MIDI
memory slot (generally called a preset). Here's how to distinguish between Write and
Copy : with the former you're actually programming or writing a new MIDI preset, with
the latter you're making an exact duplicate of an existing preset.
The system will select a Write operation whenever you edit a MIDI preset, that is, when
you have modified a programmable feature. You'll know that this is the case because
the Status LED flashes steadily when you edit one or several programmable features. If
you press the button and did not edit a MIDI preset, the system will select Copy . This
means that the given preset becomes the source, and its contents are dumped to
another preset and stored there. When you press this button, the Status LED lights up
continuously to indicate Copy is activated. The system quits Copy mode autonomously
if you do not select a new MIDI preset within about 30 seconds.
The preset programming process -- the Write command, that is -- is not carried out as
soon as you press the button. Pressing the button merely initiates the process. You
must hold it down for about a second until the Status LED flashes three times in rapid
succession. This mechanism is designed to prevent inadvertent programming. You can
cancel the programming process at any time before the Status LED first illuminates by
releasing the Write button. Again, the preset will only be programmed successfully if
you press and hold the button until the Status LED flashes three times.
You'll have to go through a similar routine to copy a preset once you select a target
preset: When the Status LED extinguishes, the copy operation is underway and can no
longer be cancelled. The LED flashes three times to indicate the preset was copied
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