Quaverato Harmonic Tremolo Pedal

Rated 5.00 out of 5 based on 3 customer ratings
(3 customer reviews)


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, with or without MIDI implementation (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
    • Optional MIDI implementation gives remote control over every feature
    • MIDI Mod upgrade to an existing pedal also requires USB-Tiny programmer and free ZDL Updater for new software


SKU: QUA Category:


  • 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)
  • Full MIDI implementation available as an option
  • 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 21.5 oz = 1.34 lb (600 g)
POWER REQUIREMENT 9V DC center-negative power supply, 60 mA

3 reviews for Quaverato Harmonic Tremolo Pedal

  1. Rated 5 out of 5

    Scott strange (verified owner)

    My unit was quickly shipped to Canada. Was very impressed with the thoroughness of the instructions and kit layout. Great design, easy to build, took me a few hours. Plugged it in first time to no effected signal, but discovered i had the DIP switches all off, so quickly got it working. Very versatile trem, great quality, beautiful look, great sound. Love the momentary mode, the soft touch relay switching. My only two issues were the color of the display LED’s, which i found look christmas-ey with the red/green so i changed mine. Also, i think having the volume control is a drawback, as i dont use a tremolo as a boost, i use a boost as a boost, so finding and mainting it at unity gain is rather a headache. I will probably find the right spot and glue it in place or disconnect the pot and put a trimmer inside.
    Would recommend using rotary switches for the multiplier and wave shape controls, but thats just my preference.
    Otherwise, incredible stuff you guys. Love it.

  2. Rated 5 out of 5


    Purchased the DIY Kit.
    Shipping: Arrived within a few days to California. Well packed.
    Packaging: Arrived with all parts in perfect shape. Separate plastic baggies for different part types.
    PCB: The board is layed out nicely with plenty of room. Labels were clear and easy to read.
    Parts: Good, quality parts.
    Instructions: Some of the best I’ve seen. Every step is clearly explained and illustrated. The demo video answers a lot of questions.
    Product Support: I asked a question on the forum and got a prompt reply from Brach.
    Finished Product: I was very happy with the results. Handsome looking pedal built like a tank. The sounds were very consistent with what you hear online. Versatile and pleasant to the ear. I just finished the build last night, so I haven’t played through it for more than a few minutes. I liked what I heard.

    Highly recommended. I found a 10% discount code in the March 2019 Premier Guitar magazine.

  3. Rated 5 out of 5

    pciccimaro (verified owner)

    Great Kit. Ordered this as a DIY Kit. Instructions were VERY easy to follow and precise. Pedal looks sharp and sounds great. Any questions I had, Brach answered quickly and informatively. Can not wait for their next DIY Kits!!

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What You WIll Need

    Here's what you will need to build the Quaverato Harmonic Tremolo Pedal KIT.  See also the online Quaverato Assembly Manual, available on the Documentation tab.
  • NOTE: If you are upgrading an existing Quaverato with the new MIDI Mod, you will also need a USB-Tiny programmer and the free ZDL Updater to install new software.
    • TOOLS
          • 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
      • 9V DC center-negative supply, at least 200 mA -- typical pedal supply


  • Download the Manuals:
  • Download the New MIDI Software:
  • Go over to the ZDL Updater page and download this terrific new utility. The ZDL Updater includes the latest software for all our products.
View Demo Videos:
  • Watch the official tutorial videos, plus many user and press reviews and demos on our YouTube channel.