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Vahlbruch Analog Chorus Pedal for Acoustic Instruments
The "Chorus Acoustic" effect pedal is specially designed for signals from acoustic instruments. A
permanently active buffer/impedance-converter ensures linear signal transfer through the
downstream signal chain. This is particularly beneficial for passive piezo pickups, as the sound
always remains stable and transparent. The "Chorus Acoustic" does not change the phase of the
pickup signal, therefore there are no cancellations between the direct sound of the instrument
and the electronically amplified signal. The familiar response and frequency spectrum are
completely retained. In an internal parallel signal path the chorus effect is generated and added
to the original dry signal. The "Mix" control determines the chorus intensity. The modulation
speed and depth can be adjusted via "Speed" and "Depth". Slow "Speed" and high "Depth"
settings generate a very wide and deep chorus effect. Each unit is individually adjusted by hand
for optimal modulation!
Inside the button a magnet is integrated which position is measured by a sensor on the circuit board. If the button is now moved, e.g. if it is pressed downwards, the position of the magnet will also change. The sensor measures this change without any mechanical contact to the button and the information is send via a micro-controller to a gold-plated relay, which then does the actual audio signal switching.The advantages of "MagTraB" footswitches:
To change the state:
Step 1: Unplug the power supply cable.
Step 2: Hold down on/off "MagTraB" button.
Step 3: Plug in again the power supply cable.
Step 4: Release on/off "MagTraB"" button.
DONE! The next time your pedal powers up it will automatically start in the other state.