
Congratulations on your purchase of 
, a multi-functional modulation pedal.  
 is four analog effects in one: Modulated Wah, Phaser, Tremolo and Vibrato.   
 comes equipped with a 24 volt DC (inner positive) / 100mA external power 
adapter. Use only the power adapter that is supplied! Using the wrong adapter can cause 
serious bodily injury and may damage your unit. This will void the warranty. 
 – Selects between the four different types of effects: 
 – Adjusts the amount of effect that will be applied to your signal. As 
 knob is turned from the Counter-Clockwise (minimum) position to the 
Clockwise (maximum) position, the intensity of the effect will increase. 
– Adjusts the speed of modulation for the effect. As the 
turned from the Counter-Clockwise (minimum) position to the Clockwise (maximum) 
position, the speed of the effect will go from slow to fast. 
AUTO / MANUAL/EXP Toggle Switch
 – Set this switch to AUTO mode for normal 
modulation use. When this switch is set to MANUAL/EXP mode, the internal 
modulation waveform is disconnected from the circuit and the RANGE knob will 
sweep through the effect. In addition, while in MANUAL/EXP mode, you can connect 
an expression pedal or control voltage (between 0 – 5V only) to the EXP. PEDAL jack 
and use the expression pedal to sweep the effects.  
STATUS LED and FOOTSWITCH 
– If the effect is engaged, the LED will blink at 
the same rate that the effect modulates. If the LED is off, The Worm is in True 
Bypass mode.  The footswitch engages/disengages the effect. 
 – Connect your instrument to this jack. The input impedance present at 
 – Connect this jack to your amp or next effects pedal. The output 
impedance present at this jack is 1 k
 – Connect an Expression Pedal to this jack or the output from a 
Control Voltage generator. The expression pedal must have a TRS plug attached to it 
with the tip attached to the pedal’s wiper. The control voltage must be between 0V 
and 5V. The input impedance present at this jack is 100 k
Acceptable expression pedals include: M-Audio EX-P, Moog Expression Pedal, Roland 
 – Connect the output plug from the supplied 24VDC/100mA wall 
wart to the 24V PWR jack at the top of The Worm. Please use only the AC Adapter 
that came supplied with The Worm. The Worm does not accept batteries.