Quadra & Expander Manual
Quadra Front Panel
Controls
1. ATTACK
- This knob (x4)
controls the time of the attack
portion of the function (rising
from zero to the maximum
level). Slower times will create a
fade-in effect while faster times
are used for snappy percussive
sounds.
2. DECAY
- This knob (x4)
controls the fall-to-zero time. In
ASR mode this will act as the
release time. In Cycle mode the
total time of ATTACK plus
DECAY sets the frequency of
the LFO.
3. Exponential/Linear Switch
-
This switch (x4) changes the
attack and decay curves.
Depending on what you are
patching the Quadra into, this
setting may need to be
changed. For example if you
patch into an exponential VCA
you’ll probably use linear mode.
The fastest envelope times are
achieved when in linear mode.
4. Mode Switch
- This switch (x4)
sets each function generator to
one of three modes: AD, ASR or
Cycle mode. AD is an envelope
that ignores the incoming gate
time and is simply triggered.
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