aion TEMPEST Handbuch - Seite 6

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BUILD NOTES

Circuit architecture
This circuit has several cascaded gain & clipping stages, but overall it's pretty linear without a lot of
interaction between the sections. Here is a block diagram of how the circuit is arranged:
TIGHT
GAIN /
GAIN
INPUT
SOFT CLIP
(LOW CUT)
SOFT CLIP
TRIMMER
PRESENCE
HARD CLIP
TREBLE
BASS
(HIGH CUT)
VOLUME
MID
OUTPUT
Setting the gain trimmer
The circuit has an on-board internal trimmer to adjust the overall gain range of the circuit. This is
different from the external gain control. As you can see in the block diagram above, this gain stage
comes after the two soft-clipping stages, but before the final hard-clipping stage. It's a simple op-amp
stage that boosts or cuts the signal going into the hard clipping stage, so it primarily impacts the amount
of hard clipping.
At its stock setting of 12:00, the pedal could be considered a medium-gain drive. By turning it up, you
can shift it into the mid-to-high gain range.
Conversely, by turning it down, you can have better control over the low gain range, but the pedal will
lack the high-gain tones that you might expect from it.
TEMPEST AMP DISTORTION
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