Quaverato Harmonic Tremolo Pedal



Quaverato Harmonic Tremolo Pedal  combines many features to make a great sounding, versatile, and practical stompbox. Available as a DIY KIT or Ready-to-Play (select below).

  • Digitally controlled, all analog signal path combining maximum flexibility with great tone.
  • Both Traditional (In-Phase) and Harmonic (Out-Of-Phase) Tremolo modes
  • Up to 15dB of gain
  • Modulates the high and low frequencies independently for dynamic swirling effects
  • Extra internal controls allow for custom crossover frequency selection and individual HIGH and LOW signal path volume adjustment, for full tonal control
  • Bypass footswitch can be used as either a toggle or momentary switch
  • Plus all the usual:
    • LFO wave shape, rate, depth and spacing (aka wave form shift or duty cycle)
    • Tap Tempo footswitch and multiplier selection
    • Relay controlled, true-bypass switching scheme

See Demo Video below!

SKU: QUA Category: Tag:


  • Harmonic or Traditional tremolo
  • Harmonic Mix allows the HIGH and LOW frequency bands to be modulated independently
  • Adjustable harmonic crossover frequencies and individual volume controls for the HIGH and LOW signal paths for tonal control — the Quaverato can be adapted for use with guitar or bass
  • Relay-controlled true-bypass switching
  • Boost up to 15dB
  • Tap time with multiplier: 4:1,  3:1,  2:1,  1.5:1,  1:1, .5:1
  • Footswitch can engage the effect either as a toggle or as a momentary switch
  • All the usual LFO waveforms and controls: speed, depth, shape, and spacing (aka waveform shift, or duty cycle)
  • A MIDI upgrade kit is coming in late 2018
  • Sturdy 18 gauge steel enclosure
  • Robust polycarbonate label
  • Open source software so all you hackers can customize your tone!
Finish Galvanized steel
width 5″ (12.5 cm)
depth 4-3/16″ (10.5 cm)
height 2″ (5 cm)
weight 20 oz = 1.25 lb (565 g)
POWER REQUIREMENT 9V DC center-negative power supply, 60 mA


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What You WIll Need

    Here's what you will need to build the Quaverato Harmonic Tremolo Pedal KIT. (Of course, if you order the Ready-to-Play, all you need is an amp , a guitar or other instrument, and a 9V DC power supply.)  See also the online Quaverato Assembly Manual, available on the Documentation tab.
  • Digital multimeter
  • #2 Philips screw driver
  • Small flat-head screwdriver
  • Needle nose pliers
  • Wire strippers
  • Small diagonal-cutting or flush-cutting pliers
  • X-acto knife or hobby knife
  • 8mm, 10mm, and 5/8” sockets and driver; in a pinch, pliers may work as well.
  • Soldering iron (not a soldering gun, or a “cold heat” iron), good quality, 15-50 watt. An iron with a temperature control and a stand is best. Use a small or medium size tip, with conical or chisel shape.
  • Solder sucker or solder braid (optional, but very handy if you have to remove or repair any components!)
  • Damp sponge or dry solder-cleaning pad
  • Clamp or vise to hold the printed circuit board while soldering (optional, but handy)
  • Solder, 60/40 rosin core, small diameter
  • Rubbing alcohol and cleaning rag
  • Transparent tape or masking tape


  • Download the Manuals:
  • View Demo Video: