"Excellent, funky 70's fuzz/phaser multi-effect with updated controls"




The FuzzFazer fuzz and phaser multi-effect rack module compares to the Roland AP-7 Jet Phaser, famously used in the Isley Brothers' hit Who's That Lady? and by Sly and the Family Stone bassist, Larry Graham.



Our FuzzFazer module compares to the Roland AP-7 Jet Phaser.  The Roland AP-7 Jet Phaser is a classic vintage phaser that combined a fuzz and phaser into an early multi-effect unit.  It was used to get that funky guitar sound in The Isley Brother's hit Who's That Lady?  Also works great with bass, and was used by bass slapper Larry Graham of Sly and the Family Stone and many of his other collaborations, including with Prince.  It was available around 1975 - 1978.  Funk it up!  While it wasn't used by Keith, it gives you a nice tone for the Some Girls album. 

The sound wasn't the only funky feature of the Jet Phaser.  The controls on the original unit were a bit funky.  There was a Jet Level that controlled the volume, but only when the fuzz was on.  A Resonance knob controlled feedback in the phaser portion of the circuit.  A Slow Rate knob let you adjust the rate of the phasing, when it was on the Slow setting.  There was a footswitch to turn the effect on and off.  A second footswitch changed between Fast and Slow phaser settings.  Then there was the Mode switch.  You could switch between six different modes.  The first four modes were combinations of bright/dark fuzz and two phaser presets.  The other two modes had no fuzz.  They were phaser-only settings.

Our module stays close to the original pedal design, but we changed up the controls to provide a wider array of settings than the original six modes.  The original modes are all still there in the new controls, though.  The original also had a fixed tone stack for the fuzz circuit, which offered only "dark" or "bright" settings in the four modes that had fuzz.  We've replaced that with a simple Tone control.  At the two extreme positions of the knob, you get the old tone settings, but with much finer control in between them.  Four of the original modes were fuzz plus phaser and two were phaser only.  But you couldn't get just the fuzz without the phaser.  Our controls allow that.  The fuzz by itself was released as a separate pedal, the Roland AF-60 Bee Gee, with some minor tweaks.  With the fuzz turned off in the FuzzFazer, you'll get very close to the Bee Gee.

The FuzzFazer controls include:

  • Fuzz (Jet Level)
  • Fuzz Tone (replacing part of the Mode selector)
  • Fuzz On/Off Switch (replacing part of the Mode Selector)
  • Phaser On/Off switch (replacing part of the Mode selector and allowing fuzz-only settings)
  • Depth (replacing part of the Mode selector, and allowing a range of Depths, unlike the two presets of the original - both original settings are in the range)
  • Slow (Slow Rate)
  • Resonance - same as original
  • Fast/Slow footswitch - same as original
  • On/Off footswitch - same as original
  • LED On/Off indicator - not on original
  • LED Fast/Slow indicator - not on original
  • LED Rate blinker - not on original

Note that when operating in Slow, the Slow Rate control gives you control over the speed of the phasing.  When you switch to Fast, the speed ramps up to the highest speed.  When you switch back to Slow, it ramps down to the Slow speed setting.  There are no sudden jumps in speed - that's nice.  It works like a Leslie in that regard.

We apologize for the extra cost of this module.  It is a large and complex effect circuit, with lots of controls.  That means it takes a long time to build it and tune it properly.  It also requires a pile of somewhat scarce and expensive hand-matched transistors.  We have to go through a lot of pricey transistors to find a good set and that really adds up quickly.



  • FuzzFazer - compares to the Roland AP-7 Jet Phaser






  • Depth Switch -  Replace Depth control with a switch for the two original depth settings. 
  • Fuzz Tone Switch - Replace Jet Tone control with a switch for the two original jet tone settings.
  • No Blinking Rate LED
  • No Fazer On/Off Switch - Phaser will always be on if the effect is on, just like the original.  No option for fuzz only (same as original).  You can still turn the phaser down so that about all you have is fuzz.
  • External Bias Control - There is a very useful internal Bias trimmer that affects the tone of the phasing.  We recommend you consider making this external - it has a big impact on the overall sound.
  • Fast/Slow Toggle Switch - Change between Slow and Fast with a front panel toggle switch instead of a footswitch.  Leaves you with only one footswitch for on/off.
  • Fuzz On/Off Footswitch - Instead of using the second footswitch for Slow/Fast, use it for turning the fuzz on/off.  Replaces Fuzz On/Off toggle switch with Fast/Slow toggle switch.
  • Fazer On/Off Footswitch - Instead of using the second footswitch for Slow/Fast, use it for turning the phaser on/off.  Replaces Fazer On/Off toggle switch with Fast/Slow toggle switch.

Note that there is only space for two footswitch boards.  The original had an On/Off footswitch and the Fast/Slow footswitch.  That works great.  However, if you don't change the phaser speed much, you could make that a toggle switch and put the Fuzz On/Off on the second footswitch for kicking into a gnarly lead fuzz/vibe tone.  Or maybe put the phaser on the second footswitch.  Really wish we had room for 3 or 4 footswitch boards inside - maybe one of these days...


Front Panel

  • Fuzz
  • Fuzz Tone
  • Depth 
  • Resonance
  • Slow
  • Fuzz On/Off switch
  • Fazer On/Off switch
  • On/Off Indicator
  • Fast/Slow Indicator
  • Blinking Rate Indicator
  • (optional) Bias
  • (optional) Depth switch
  • (optional) Fast/Slow switch
  • (optional) Fuzz Tone switch


Rear Panel

  • Audio In
  • Audio Out
  • On/Off Footswitch
  • On/Off Override switch
  • Fast/Slow Footswitch
  • Fast/Slow Override switch
  • (optional) Fuzz On/Off Footswitch
  • (optional) Fuzz Override switch
  • (optional) Fazer On/Off Footswitch
  • (optional) Fazer Override switch
  • DC Power
  • DC Power LED


Module Width

  • 2" standard 
  • 1.5" or 2" with options
  • left and right wing module configurations not currently available


Power Consumption (aprox)

25 - 30mA


Base Configurations

Part # Description List Price
MOD-FUZZFAZER FuzzFazer module $289



Part # Description List Price
MOPT-FUZZFAZER-BIAS External Bias Control $19
MOPT-FUZZFAZER-SPDSW Fast/Slow Toggle Switch $-19
MOPT-FUZZFAZER-FUZZFSW Fuzz On/Off Footswitch $0
MOPT-FUZZFAZER-FAZERFSW Fazer On/Off Footswitch $0



Part # Description List Price
MPT-FUZZFAZER-CA Replacement pot, switch, jack, LED cable assembly $19
MPT-FUZZFAZER-KNB Replacement control knob $2
MPT-FUZZFAZER-PB Replacement power board $29
MPT-FUZZFAZER-SB Replacement switching board $29