top of page

Hex Fuzz Amplifier

Individual string fuzz or overdrive distortion for hexaphonic or polyphonic processing


The Hex Fuzz Amplifier module is quite versatile, creating a range of distortions from gentle overdrive to full-on fuzz.

The circuitry features op amp distortion and/or hard clipping with diodes.  The diodes are user-customizable via plug-in headers on the back of the module.  The module ships with a mix of Silicon and Germanium diodes (four per channel) as a starting point.

Gain controls allow you to adjust the gain from zero to full-scale in the amplified string outputs.

The six individual fuzz outputs are mixed together and presented as a seventh output.  The output mixer amplifier has an adjustable gain of 0.01 - 1.2x (0 - 20dB)

Ideal for guitar multi-channel, single-string, or hexaphonic effects processing.

Hand-assembled in the USA.


  • User-customizable clipping diodes.

  • Low-noise audio op-amps for optimal AC performance.

  • Adjustable gain or attenuation to zero within each selected gain range.

  • Output mixer with 0-20dB gain.

  • Audio input, through, output headers on the back of the module.  Input normalled to panel jacks

  • Pairs well with 13-Pin Input Breakout, Hex VU Meter, 7-Channel Amplifier-Attenuator, Hex VCF, Hex VCA, and Hex EF-Gate-Trigger.

Technical Specifications:

Width     12 HP

Depth     41 mm

Power     15 mA @ +12V

                 15 mA @  -12V

                  0 mA @  +5V

Gain        0-66 dB for each channel, 0-20dB for output mixer

Reverse power protection, resettable fuses, extensive power supply filtering

View the v1.3 Manual

View on ModularGrid

bottom of page