Engl INVADER II Operator's Manual page 12

19 High Gain
Pressing this button boosts the gain and amount of distortion in all four channels, CH1 ,
CH2 CH3 , and CH4 . The LED above this button lights up to indicate High Gain is active.
This feature can also be switched via MIDI program change or the Custom Z-9
footswitch. You can also use the optional Sound Wizard module to modify the two
gain stages. See the description of the Sound Wizard for more on this.
A tip from the designer:
Obviously, the difference between Low and High Gain is that the latter gives you more
preamp juice. But I also tuned frequency response to suit each channel's gain structure,
which is a long-winded way of saying the four channels give you eight great sonic
choices. Depending on the selected channel and Gain knob setting, the spectrum
ranges from pristine clean ( CH1 and CH2 ) to ultra saturated lead tone ( CH3 and CH4 ),
rich in overtones and gain reserves for screaming solos and crashing power chords.
Whatever tones your style, genre and whims may demand, you'll find it between these
two extremes. The options are too numerous to mention, so switch back and forth
between Low and High Gain in each of the four channels and vary the Gain knob
settings to get to know their tonal characteristics and make the most of these eight
fundamental sounds. The optional Sound Wizard module lets you select another gain
stage, Medium Gain , in addition to Low Gain and High Gain . See the description of the
Sound Wizard for more on this.
20 Gain 2
Gain control for Channel 2's preamp section. This knob determines the preamp's input
sensitivity when Channel 2 is selected and, by extension, the preamp signal's saturation
level.
A tip from the designer:
Channel 2 offers moderate to middling gain structures for great alternative clean
sounds with slightly higher gain levels and different flavors than those provided by
Channel 1 . Set it to High Gain if you wish to dial in classic rock riffs with anything from
subtle to in-your-face preamp overdrive. Even in Low Gain mode, you can conjure a
slightly dirtier sound at Gain settings around 12 to 2 o'clock, and lower with
humbucking pickups. This is a nice option to have when you're going for a grittier tone.
CAUTION: Extremely high gain and volume levels in Channel 2 can produce powerful
feedback. Avoid feedback squeals; they can lead to hearing loss and damage
speakers! At higher volumes, back off the Gain, Treble and Presence levels in order to
prevent unchecked feedback!
21 Bass
This is the preamp voicing section's passive low-frequency EQ for Channel 2 .
22 Middle
This is the preamp voicing section's passive midrange EQ for Channel 2 .
23 Treble
This is the preamp voicing section's passive high-frequency EQ for Channel 2 .
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