Supreme Drive

The Juma Supreme Drive uses a great-sounding circuit that we tweaked for a long time before we released it. Every component we chose for it has been double-blind tested against many other components.

The Supreme Drive completely lacks the compression that plagues other pedals on the market, and it’s sound is incredibly rich and detailed. These two traits make it sound unlike any other overdrive pedal ever made. It is also makes a world-class clean boost, and it is often used by players as an “always on” pedal.

At the heart of the Supreme Drive are some of the best audio-quality components available in the world today, allowing your guitar’s complex harmonic and dynamic details flow through to your amplifier as beautifully as possible.


  • Extra heavy-duty, 5-axis CNC machined aerospace-grade aluminum enclosure for maximum strength and electromagnetic shielding
  • Burson Audio Supreme Sound discrete dual op amp
  • Premium USA hand-made VCap TONE copper foil paper-in-oil capacitors by VH Audio (the website pic will be updated shortly, as we recently made some official changes to our Supreme Drive)
  • Premium USA made Vishay Z-Foil and Vishay Dale resistors
  • Low ESR, long-life Panasonic FM Series electrolytic capacitors
  • Custom BI Technologies 100,000 turn, long-life potentiometers
  • Demont/Guyatone 3PDT footswitch (pic will be updated soon)
  • Premium USA made solid aluminum knobs
  • 99.9999% ultra-pure, oxygen-free copper hookup wire
  • Lead-free, silver-bearing solder
  • RoHS compliant

Specifications and Downloads

Dimensions (Packaged): 165mm(L) x 130mm(W) x 70mm(H)  / 6.5″(L) x 5.1″(W) x 2.8″(H)
Dimensions (Unit): 152mm(L) x 114mm(W) x 59mm(H)  / 6.0″(L) x 4.5″(W) x 2.3″(H)
Weight (Packaged): 864g / 1.9lbs
Weight (Unit): 744g / 1.64 lbs
Power Supply (Adapter): 9VDC to 18VDC regulated, center-pin negative
Power Supply (Battery): 9VDC
Recommended Battery Replacement: @7VDC
Current Consumption @9VDC: 18mA
Owner’s Manual: Supreme Drive – Manual.pdf