E X T E R N A L A U D I O I N P U T
Grendel Drone Commander
Classic Pedal
AUDIO INPUT
Audio Tips: Processing External Signals
Allows you process external audio through
the filter and LFO
Inserting a plug mutes OSC 1 and OSC 2.
** OSC 1, OSC 2, and MIX knobs are inactive
when this feature is used
Suggested connections for processing guitar, bass, and microphone signals:
The Audio Input feature works best with raw synthesizer waveforms that have a constant signal level, such as the output from a VCO module. When
experimenting with it, expect to hear a distorted band-pass filter effect. The Filter Drive Trim (pg. 7) controls the gain level of Audio In.
You’ll need a 1/4” - to - 3.5mm adapter when connecting the Audio In to effect pedals or instruments.
To get the best results when processing guitar, bass, or microphone signals, it is recommended to use a preamp or buffer pedal first. Most effect pedals that
don’t have true bypass switching are OK as a buffer for electric guitar or bass. (Without a buffer, the instrument may sound dull, lacking high end detail.)
The preamp’s gain settings will affect the amount of overdrive in the Drone Commander’s filter. Patching a compressor or sustain effect between your
preamp and the Drone Commander may also improve the results.
Audio In can be driven by any analog unbalanced line output. If a stereo plug is connected, only one channel will be used. The nominal input level is -10dBu,
and the input impedance is 10k ohms.
Avoid connecting heavy weight cables and adapters directly to this pedal’s Audio In jack, as it might be damaged by accidental force.
Preamp
or Buffer
1/4”-to-3.5mm
Headphone adapter
3.5mm audio cable
or AUX cable
Electric guitar,
Bass guitar,
Piezo pickup,
or Microphone
3.5mm mono
FX pedals,
Mixer line input,
Amplifier,
etc.
3.5mm
input
1/4”
output
Flexible, light weight cable preferred
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