The Harley Benton MiniStomp PitchMate is a compact chromatic pedal tuner built to sit on a pedalboard without taking up much room. Harley Benton describes it as keeping your tuning in check, with the maker noting that "thanks to its small form-factor, it fits onto any pedalboard without stealing valuable space"1. It tunes guitar, bass, and ukulele, including a 6-string bass tuned down to a low B1. It is a digital circuit, as RockBoard's PedalPedia listing confirms2.
The controls and jacks
The PitchMate keeps things simple. There is an On/Off switch, and the input and output are both 6.3 mm jacks, the standard quarter-inch connections used on pedalboards1. The display is a color LED/LCD unit that Harley Benton says offers good readability, which matters on a dark stage1.
| Control or jack | What it does |
|---|---|
| On/Off switch | Engages and disengages the tuner1 |
| Input (6.3 mm jack) | Takes your guitar or bass signal1 |
| Output (6.3 mm jack) | Sends the signal on down the chain1 |
| Color LED/LCD display | Shows the tuning, with good readability per Harley Benton1 |
Because it is true bypass, the pedal only affects your signal while you are tuning. Harley Benton puts it plainly: "Thanks to true bypass, your tone stays completely untouched when the tuner is off"1.
"Thanks to true bypass, your tone stays completely untouched when the tuner is off."
Accuracy and calibration
Harley Benton rates the tuning accuracy at ± 0.5 cent1. A cent is one hundredth of a semitone, so half a cent is a tight tolerance for a pedal in this size class. The pitch calibration range runs from 430 to 450 Hz1, which gives room to match instruments or ensembles that tune sharp or flat of the usual reference. RockBoard's PedalPedia entry gives the same figures, describing "a wide pitch calibration range (430 to 450 Hz)" with "±0.5 cent accuracy"2.
Power: 9V, 33 mA
The PitchMate cannot run on a battery. Harley Benton states: "Note: No battery operation possible." You will need a 9V mains adapter, which is not included1.
The pedal runs on a 9V power supply via a mains adapter with center negative polarity, drawing 33 mA1. That is a modest draw that any standard 9V output on a pedalboard power supply can handle, but the absence of battery operation means it is a pedalboard or mains-powered unit rather than something to toss in a gig bag on its own.
Size and finish
The enclosure measures 93 x 38 x 31 mm and weighs 123 g, in a black finish1. Those dimensions put it firmly in the mini pedal category, useful for squeezing a tuner onto a crowded board.
Where it sits among pedal tuners
The PitchMate is one of many compact chromatic tuners in the tuner pedal category. Others in the same small-format space include the Korg Pitchblack Mini (Black), the TC Electronic Polytune 3 Mini, the Peterson StroboStomp Mini, and the Joyo Irontune. What sets the PitchMate apart on paper is its stated coverage of ukulele and 6-string low-B bass alongside guitar, and its ± 0.5 cent accuracy figure1.
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Questions
Can the Harley Benton MiniStomp PitchMate run on a battery?
No. Harley Benton states on the product page that no battery operation is possible. The PitchMate runs on a 9V power supply via a mains adapter with centre negative polarity, and that adapter is not included with the pedal. If you want to use it on a pedalboard, plan for a 9V output on your power supply.
Does the Harley Benton MiniStomp PitchMate come with a power supply?
No. Harley Benton lists a 9V mains adapter as not included, referring to a specific article number on its product page. The pedal draws 33 mA at 9V with centre negative polarity, so a standard 9V output on a pedalboard power supply will run it.
Is the Harley Benton MiniStomp PitchMate true bypass?
Yes. Harley Benton says the PitchMate is true bypass, so your tone stays completely untouched when the tuner is off. That means the pedal only sits in your signal path while you are actually tuning.
Can the PitchMate tune a bass or ukulele?
Yes. Harley Benton specifies chromatic tuning for guitar, bass, and ukulele. For bass it covers a 6-string instrument tuned down to a low B, which covers most extended-range basses. Ukulele tuning is built in alongside the guitar and bass modes.
How accurate is the Harley Benton MiniStomp PitchMate?
Harley Benton rates the tuning accuracy at plus or minus 0.5 cent. A cent is one hundredth of a semitone, so half a cent is a fine margin of error for a pedal tuner at this size and price point.
What is the calibration range of the PitchMate?
The pitch calibration range is 430 to 450 Hz, according to Harley Benton. That covers common A4 reference points with room on either side, useful for matching instruments or ensembles that tune slightly sharp or flat of the usual reference.
Sources (2)
- MiniStomp PitchMate, Harley Benton (harleybenton.com)
- MiniStomp PitchMate by Harley Benton, RockBoard PedalPedia, 2026
