Technical information
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compressed and the envelope follower is not as responsive to the 
dynamics of your playing. It is perfectly OK to use the FreqBox with the 
Drive control all the way up. 
Output Level: The Output Level control is used for balancing the 
loudness of the signal when the effect is active with the loudness of the 
signal when the effect is bypassed. When rst setting up to play, adjust 
the drive level rst for optimum drive signal level, then adjust the output 
level so it is balanced with the bypass signal. The Output Level control 
has a wide enough range to boost the volume signicantly - especially 
with the drive control turned up all the way. Use caution with this 
control for both your speakers and your ears! The Maximum output 
level is much greater than your typical stompbox so watch out!!!
Freq: The Freq control is used to adjust the frequency of the VCO. 
If the Envelope Amount and FM amount controls are all the way 
counterclockwise, and the Sync is OFF, the Frequency of the VCO is 
nominally 25Hz if it is fully counterclockwise. When it is fully clockwise 
the frequency of the VCO is nominally 1.6KHz, or 6 octaves higher. 
Wave: The Wave control is used to set the waveform of the VCO. 
The legend around the control indicates approximately the locations 
of the waveforms. The basic waveforms are: triangle, sawtooth, 
square, and pulse. A triangle wave is produced when the control is fully 
counterclockwise. As the control is advanced clockwise, the waveform is 
crossfaded to a sawtooth, then to a square wave, then to a pulse wave. 
Sync On/Off: The Sync On/Off switch engages the FreqBox’s hard sync 
function, causing the VCO to be retriggered by the input signal. If the 
input signal has a simple waveform, then the VCO will be retriggered 
at the frequency of the signal. A very complex signal (like a dissonant 
chord) will cause less predictable results, as the VCO will be retriggered 
not at a predictable frequency but by the sum of all the frequencies. 
A pitched tone may or may not be the result. With guitars, if a note is 
plucked hard and left to ring, there are times when the second harmonic 
is louder than the fundamental. You may hear this as the VCO tone will 
shift with this change. If the VCO frequency is much lower than the 
input signal, it is possible that you won’t be able to hear any output from 
the VCO, especially if the waveform is a square wave, or pulse wave. 
Env. Amount: The Env. Amount control sets the amount that the 










