The 10th Anniversary Sunder Fuzz takes the original crushing fuzz and adds a clean low passed signal for even more heavy tones. Using a differential tranistor pair, the Sunder generates heavy upper harmonics that create a wall of sound for bass or guitar use. Great for heavy metal, synth, or any scenario where you need a massive fuzz tone.
 
The Low knob has been repurposed to be a volume control of the low passed clean signal. This signal is taken post gain, so as you turn the gain up, you get even more clean lows available. Fuzz pedals often lose dynamics due to their inherent compression, but the clean low passed signal retains your dynamics and gives a tight, punchy foundation to your fuzz tone. 
 
The High knob is a boost/cut of the treble frequencies. The Mid knob is also a boost/cut, and the center frequency can vary from 200 Hz to 2 kHz.
 
The pedal requires a DC power supply (not included). The DC supply should be a standard Boss style connector, center negative polarity. The pedal can accept 9 to 24 volts. The current draw is approximately 20 mA.
 
Sunder Fuzz has a true bypass switch.
 
Dimensions: 4.77" long x 2.6" wide