User guide
12 | Controls: Knobs  
MOD SOURCE Knob: When Hot Hand, MIDI, or an expression pedal are not 
being used, the STINGRAY features 6 different types of modulation control: 
Slow Attack Envelope Follower, Sine Wave LFO, Square Wave LFO, Random
Sample and Hold, Sawtooth Wave LFO, and Fast Attack Envelope Follower. 
The MOD SOURCE knob controls a gradual blend in between each selection,
so setting this knob between two of the modulation graphics will create a
sound with features of both modulation forms.
 • Slow Attack Envelope Follower ( ):  The Envelope Follower 
produces a control signal based on the volume of your instrument. Varying 
your playing dynamics will change how this control signal affects the sound. 
By using the SPEED knob, you can adjust the timing of the Attack and Decay 
to control the rise and fall of the control signal.
 • Sine Wave LFO ( ):  The Sine Wave LFO produces a very smooth 
and uniformly moving modulation. Use the Sine Wave LFO for a more 
traditional chorus or phaser-like effect.
 • Square Wave LFO ( ): Unlike the smooth modulation of a Sine 
Wave, the Square Wave LFO has a blockish sound of extreme peaks and 
valleys. Use the Square Wave LFO for a dramatic, choppy sounding effect.
 • Sawtooth Wave LFO ( ): The Sawtooth Wave LFO has similarities 
to both the Sine and Square wave, producing smooth rises to the peak like 
the Sine wave, but a dramatic drops like the Square Wave.
  • Random Sample and Hold ( ): This modulation source utilizes a
randomized staircase wavefor
m that recreates the chaotic filter sounds
found in some vintage analog synthesizers.
  • Fast Attack Envelope Follower ( ): The Attack, or rise of the 
control signal, is set to a fixed “fast” speed. By using the SPEED knob, you 
can adjust the timing of the Decay, which is the fall of the control signal.
 Effect Types | 17
To access Extended Mode, hold the CONTROL INPUT button while quickly 
pressing the OPTION SELECT button. You can switch back to Normal Mode 
by doing the same procedure. Extended Mode is a global setting for the 
pedal and is not saved per preset. 
The filter effects featured in the STINGRAY are further described, followed by 
the order in which they appear in Normal and Extended Modes.
Low Pass Filter: allows only low frequencies to pass through while 
removing high frequencies from your signal.
High Pass Filter: allows only high frequencies to pass through, while 
removing low frequencies from your signal.
Band Pass Filter: allows a grouped section of frequencies to pass through, 
while removing the remainder of the frequency spectrum.
Peak Filter: allows the full frequency spectrum to pass through as it peaks 
(or boosts) a narrow range of frequencies.
Notch Filter: notches (or removes) frequencies in a narrow range.
Stingray Manual - pages 12, 17










