A drone synthesizer for your pedalboard, the Drone Tone is a pitch and rate controllable square wave oscillator in a guitar pedal format.   

It can be used stand-alone or with an instrument input, however, the instrument input is unaffected and is simply buffered and passed-through to the output jack.  The mix control sets the volume of the square wave oscillator at the output jack.

MKIII adds onboard tap tempo, tempo sync input (0-5V), internal pitch range control, and top mounted jacks.

Review by musicradar

Review by No Treble

Review by gearnews.de

Review by Premier Guitar

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Drone Tone MKIII

The new Warble Swell Echo MKII from Mattoverse Electronics is a lo-fi echo exploration machine. A dynamic foot-controllable swell feature and 8 modulation waveforms provide an alluring array of echo options. From silky smooth slapback and seasick swells, to the static filled wobble of a broken cassette tape and everything in between.  The Warble Swell Echo MKII is sure to be a capable and dynamic companion on your next sonic space adventure.

Review by delicious audio

Warble Swell Echo MkII

Tired of the standard boost pedal? The HiLo Boost from Mattoverse Electronics allows you to boost low and high frequencies independently allowing you to tailor your boost and push your amp in just the right way to get the tone and breakup you are after.  Having control for high and low-frequency boost allows you more tonal flexibility than a simple tone control.

The left knob controls how much the low frequencies are boosted and the right knob controls the level of high-frequency boost.  There is approximately 25db of gain available for both high and low frequencies.

Review by The Gear Page

Review by reddit /guitarpedals

Demo by Sean Gibson

HiLo Boost

The FloraVolt Mini is a fruit/vegetable powered audio saturator. Play delicious potato powered diminished chords as you contemplate your produce powered future, or just spend the day ripping sick riffs thanks to that old banana you weren’t going to eat anyway.  Use an apple to sweetly saturate your synths and drum machines, or languish in the luscious tones of your lime powered legato leads. 

Move over tonewood... tonefruit is the next great tone debate.

The FloraVolt Mini is a simpler stripped down and more affordable version of the standard FloraVolt. It has no controls or switches, just an input and output jack, and does not require batteries or external power.  Just push the pegs into a fruit/vegetable to form a simple organic battery that powers the device.

Demo by MusicGearz

FloraVolt Mini

The AirTrash is a pedal for guitar or bass that sounds like absolute garbage. I was breadboarding an idea and happened upon some absolutely sickening sounds, like really bad, but couldn’t stop playing it.  I spent a lot of time trying to refine and improve it, make it less noisy, more controllable etc.. but these changes always ended up sucking the fun right out of it so decided let it be the simple disgusting beast that it is.

It “works well” with guitar or bass and usually sounds best with the guitar or bass plugged straight into it (first in the pedal chain), didn’t do much for me at all on synths or drum machines.  It’s very sensitive to pick attack and input volume.

The blue knob controls the output level.  I could not come up with words to properly describe what the red and yellow knobs do so I created those little icons in an attempt to illustrate what words could not describe.

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Weitere Pedals von Mattoverse Electronics

Mattoverse Electronics

Drone Tone MKIII

Mattoverse Electronics

Warble Swell Echo MkII

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HiLo Boost

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FloraVolt Mini

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