Black Cat Pedals


The Black Cat Monster K-Fuzz stompbox is the latest edition of our uniquely hotrodded version of the ’60s Kay Fuzztone. The new Monster K-Fuzz stompbox has all the bells and whistles features of the treadle based version in a pedalboard friendly enclosure at a more affordable price.

The Monster K-Fuzz controls can be set to go anywhere from a vintage Kay Fuzztone to a fire breathing monster fuzz. Expression pedal control of the Fuzz Frequency allows the same functionality as the former treadle based versions. And with a look that pays tribute to the ’60s original, the new Monster K-Fuzz is the ultimate evolution of the Kay Fuzztone.


  • Expression pedal control of the Fuzz Frequenc
  • Durable powder-coat Orange Sparkle finish
  • 3-way toggle switches for Clipping and Voicing
  • Input Gain adjustment control
  • “Pedalboard friendly” stompbox enclosure
  • 3PDT true-bypass switch and Switchcraft jacks
  • Uses 2.1mm Boss style power jack or internal 9V battery
  • Hand-wired, Boutique quality, Made in USA
INPUT GAIN: Controls the amount of signal going into the pedal. Start with the control set around 2 o’clock for single coil pickups, or noon for humbuckers. Or you can overload the fuzz circuit by cranking it up all the way for maximum mayhem and fuzz carnage.

CLIPPING: On this one, the backward position is a silicon diode pair (stock K-Fuzz), the forward position is a germanium diode pair (like the original Kay Fuzztone), and the middle position is a specially selected Schottky diode pair. The Schottky pair, along with the backward toggle position of the Voicing switch, will create the Fuzz of Doom.

VOICING: The middle position is the stock voicing of the original K-Fuzz. This is the tamest of the settings. The forward toggle position has a similar sound with a little more body and girth. The backward toggle position is the Fuzz of Doom, with an earth-rumbling low end and a sweep that will tear the flesh off your bones.

INTERNAL TRIMPOT: Controls the overall output volume of the pedal. You can set this trimpot in whatever way suits you best. If you tend to favor the germanium diode setting, you may want to raise the output volume, since that setting has much less volume than the other two diode pairs. Remember to check the overall volume of the fuzz against your bypass sound.