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Chapter 5 Distortion 59
• US 1×10 open back—Not much resonance in the low frequency range. Suitable for
use with (blues) harmonicas.
• US 1×12 open back 1—Open enclosure of an American lead combo with a single 12"
speaker.
• US 1×12 open back 2—Open enclosure of an American clean/crunch combo with a
single 12" speaker.
• US 1×12 open back 3—Open enclosure of another American clean/crunch combo
with a single 12" speaker.
• US broad range—Cabinet simulation of a classic electric piano speaker.
• Analog simulation—Internal speaker simulation of a well-known British 19" tube
preamplifier.
• UK 1×12—A British Class A tube open back with a single 12" speaker.
• UK 4×12—Classic closed enclosure with four 12" speakers (black series), suitable for
Rock.
• US 1×12 open back—Open enclosure of an American lead combo with a single 12"
speaker.
• US 1×12 bass reflex—Closed bass reflex cabinet with a single 12" speaker.
• DI Box—This option allows you to bypass the speaker simulation section.
The EQ models in the EQ menu refer to the simulated Amp models. Accordingly, the
British 1, British 2, American, and Modern EQ models are available for the British Clean,
British Gain, American Clean, and American Gain Amp models. You can, however,
combine any Amp model with any EQ model, as required.
Directly below the EQ menu, you will find the Bass, Mid, and Treble controls. Use of
these knobs allows you to adjust the frequency ranges of the EQ models as desired.
Presence is an additional high frequency control which exclusively affects the output
stage (Master) of the Guitar Amp Pro plug-in.
The Link buttons between the menus link your menu selections. To explain, if the Link
button between the EQ and Amp menus is active (yellow), selecting an Amp model will
automatically load the corresponding EQ model. As mentioned earlier, you can,
however, assign any other EQ model to the selected amp—via the EQ menu.
If the Link button between the Speaker and Amp menus is active, selecting an Amp
model will automatically load the corresponding Speaker model. The cabinet
assignment can be changed via the Speaker menu, as required.
To the far left of the Amp section, you will find the Gain knob, which controls the pre-
amplification of the input signal. This control has different effects, dependent on the
selected Amp model. As an example: A maximum Gain setting produces a powerful
crunch sound when used in conjunction with the British Clean Amp model, but the
same Gain setting results in a heavy distortion—suitable for lead sounds—with the
British Gain or Modern Gain Amp models.