User Guide

21
OUTPUT (Continued)
VOLUME
The VOLUME knob sets the level for the combined MAIN OUT / HEADPHONE
OUT 1/4” jack located on the rear panel.
NOTE: The VOLUME knob is placed after the SPRING REVERB MIX knob in
the signal path.
NOTE: The level of the EURORACK output jack on the rear panel is unaffected
by the VOLUME knob setting
VCA MODE
The Voltage Controlled Amplier, or VCA, is an amplier that can be
modulated from different sources to control Grandmother’s output level.
Most often the control source is the Envelope generator – but not always.
ENV (ENVELOPE)
In the ENV position, the output Volume will be controlled by the Envelope
generator.
KB RLS (KEYBOARD RELEASE)
In the KB RLS position, the attack of each note will be instantaneous, and will sound at the maximum
sustain level for as long as a note is held. Once the note is released, the VCA will follow the Envelope
Release setting to determine how long it takes for the sound to fade from its maximum level to zero.
This is particularly useful when paired with exaggerated lter modulation.
NOTE: KB RLS was inspired by the classic Moog KB GATE function, but has been modied for greater
musical exibility.
DRONE
In the DRONE position, Grandmother will continue to output sound at the current volume level whether
a key is held or not. This can be valuable when creating synthetic textures and droning sounds, and
when processing external audio signals via the INSTRUMENT IN jack.
MIX (SPRING REVERB)
The MIX knob sets the balance between the dry (unaffected) signal, and
the wet (fully affected) sound of the built-in spring reverb tank. At minimum
position, no Reverb is present. At maximum position, the dry signal is absent,
and only the Reverb signal is present.
NOTE: The MIX knob has no effect on the rear panel REVERB OUTPUT jack
as it is always 100% wet.
CRITICAL NOTE: Grandmother’s Spring Reverb may be susceptible to physical vibrations and
electro-magnetic interference from other sources - radio signals, cell phones, etc. This is due
to the nature and construction of an analog spring reverb tank, and is normal.