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Table Of Contents
EFFECTS MENU 607
Guitar amp
Circuit philosophy
The VANDAL guitar amp offers three different preamp modes and two switchable end
stage models. This basic configuration may be changed via the wrench symbol on the right
side of the amp.
The preamp features these modes: Classic (Fender-esque, Vox, older Mesa/Boogie amps),
British (similar to Marshall Super Lead / Plexi), and Modern (designed similarly to amps like
Rectifier, Soldano, or Peavey 6505).
The end stage my be switched around: Either a simple, weak-performance but pleasantly
distorted class-A circuitry, or class A/B with high-power, more sovereign, extra-juicy bass,
and biting highs.
The guitar amp is setup with three channels in all preamp configurations. These may be set
up with the pre and post gain controllers per channel for the desired mix ratio. Don't worry
about switching things around: The amplifier will remember the gain settings when
channels are changed.
3 preamp modes x 2 end-stage models makes 6 different amps. Times that by three 3
channels...
Sound design
There is a series of more or less open secrets with regard to the different signature sounds
of guitar amps. This one might sound "bluesy", but doesn't sound so great with more gain,
and the other is contoured for grindcore metal and fat, but maybe a little anaemic... Why is
that?
Most amps in the real world use more or less the same or similar circuitry designs. The
important thing is the number of tube stages involved. Each new stage not only increases
the level of audio complexity, it also has a large influence on how the way the signal is
treated before and after that stage. Filtering is the key:
We have provided VANDAL preamps with something that we call Curve EQ. For example,
if you take a simple EQ pedal and shape the signal a little before the amp, then this may
change the sound quite drastically. Curve EQ does something similar: It's located (in some
cases multiply) at strategically points between individual amplifier stages and filters the
signal, before it is distorted by the next stage. This is called Voicing. For fun, turn a curve in