The TightFuzz is a very flexible fuzz, with EQ switches, a Silicon/Germanium transistor switch, & Tight attack control.

The new TightFuzz was requested by Amptweaker™ players, and this one will certainly add some vintage tone to their arsenal.  While most vintage fuzz boxes have very few controls, the TightFuzz includes a Tone control to tame the fuzzy edges and the Tight control, a mainstay of Amptweaker pedals, which varies the pick attack from smooth and thick to tight and aggressive.  This is particularly helpful for tweaking a fuzz tone, since many tend to be too flubby on the lowend.  While many modern fuzz boxes have chosen to create wacky over-the-top fuzztone, the Amptweaker approach is to make something that has a lot of flexibile but usable tones.

The most requested feature was the Germanium/Silicon switch, which changes the output stage from a softer, lower gain Germanium to a heavier, high gain Silicon transistor.  This cool pedal also has the ability to get lower gain tones easily, with an Auto Bias that adjusts appropriately with the Fuzz control, to get the cleanest and nastiest distortions possible with one control.  It also has an Edge switch with a Smooth setting to further knock the edge off, and a 60’s/70’s switch that transforms the pedal from tighter, lower gain 60’s tones to fatter and heavier 70’s tones.

One of the important differences between the TightFuzz and most ‘reissue’ fuzz boxes is that with the addition of the Tight control in front of the fuzz circuit, the input of the fuzz circuit is effectively buffered from the guitar….but in a compensated way.  A common problem with the original fuzz designs is that circuits with low output impedances like those in overdrive pedals and wah pedals, or the output of active pickups, can completely change the bias and gain structure.  The result is often an odd sound or squeals, unusual feedback etc.  The buffering in the TightFuzz simulates the impedance of a guitar, so that the fuzz circuit works in the normal way it’s intended, and any low impedance circuit CAN be used in the loop or in front of the pedal.

Standard Amptweaker features include an effects loop with Pre/Post switch to add delay or combine other distortion and EQs to further tweak your fuzztone. Other features include the LED illumination of controls, Battery On/Off switch, and magnetic battery access door.

In typical Amptweaker style, we brought a special prototype with capacitor and resistor boxes hanging out to get people to help us make the final tweaks at NAMM.  We adjusted the auto-biasing circuit, tweaked the Edge switch, and also chose the coolest color….a shiny silver color was the crowd favorite!  It was a lot of fun for all, and I think the end result is a really cool and flexible pedal!

Gain Boost MOD

After some requests for ‘more fuzz’, we developed a MOD for the TightFuzz, which adds a hidden Boost Switch inside the battery door. The mod adds about 10 dB of additional clean boost to the front end of the TightFuzz, so you can get gobs of fuzz even from vintage pickups.  This can be ordered here directly from Amptweaker for an additional $30, or can be added to an existing TightFuzz for $50 including return shipping in the US.  Click Here to contact us about modding your existing TightFuzz or ordering one with the mod.

Please contact an authorized Amptweaker dealer to get this pedal, or check at or

“I think the TightFuzz is exactly what I needed.  Having the external loop for an eq pedal is SMART!  Keep up the innovative work.”  –Steve Stevens

  • True Bypass switch
  • Fuzz control automatically adjusts bias – more range
  • Master Volume Control
  • Tight and Tone help tame the fuzz
  • Germanium/Silicon transistor switch for different gain and tone
  • 60’s/70’s Tone switch
  • Edge switch smooths out the high frequency range
  • EFX Loop with Pre/Post switch..tracks On/Off Ftsw
  • LED lit knobs when using a power supply
  • Battery disconnect switch with red indicator
  • Works with a 9V battery or 9-18VDC supply
  • DC Adapter jack, standard 2.1mm X 5.5mm, center ground(-)
  • Magnetic Battery access door opens w/o tools
  • Dimensions 3.7″W X 5″D X 2″H
  • Handmade in the USA
  • 5 Year Limited Warranty

Product Styling by Bob Hopkins. Mechanical Engineering support by Ken Chappell. Electrical & Mechanical Design and Tweaking by James Brown.……Conceptual Ideas by You.


swipe for other views

Johan Segeborn shows off the variety of tones you can get with the TightFuzz

Mike Hermans’ excellent demo of the TightFuzz

Reeves Gabrels checks out the TightFuzz…and tests it out into the SwirlPool

Gearmanndude runs the TightFuzz through its paces

NAMM demo with Premier Guitar

Great Tone King demo of the TightFuzz