TC Electronic VPD I User Manual page 6

OVERVIEW & FUNCTIONS
6 Flat / Top Boost / Mid Boost - selector
When the Boost channel is active it is possible to add a Top-boost or
Mid-boost filter. If you prefer no filter, choose "Flat".
TOP-BOOST
FLAT
MID-BOOST
RESONANCE
7 Drive
Sets the amount of drive on the Drive channel.
BOOST
8 Level
Sets the Output level of the pedal when it is active.
9 Bass
Bass attenuation for the Boost channel.
10 SPK SIM - Speaker Simulation
Press the small countersinked button using the point of a ballpoint pen
or similar to activate the speaker simulation filter. The filter simulates
the frequency response of a guitar speaker by rolling off high-end
frequencies after a carefully calculated pattern.
6
· Top position: Top Boost (1kHz)
FLAT
· Mid position: Off (no filter)
· Down Position: Mid Boost (500Hz)
ON
vintage pre-drive