Jackson Audio - Asabi (Mateus Asato Signature Distortion)

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The Mateus Asato Signature Pedal, the ASABI, is a distortion and overdrive pedal that contains a HUGE array of tones and is also the world's first pedal to feature analog distortion plug-ins!

To keep things interesting on your pedalboard, we developed the technology to create replaceable distortion plug-ins so you can swap the distortion circuit in the ASABI without having to buy a completely new pedal! Because we all like to try out new pedals, these affordable plug-ins allow you to buy the pedal once and update it with new plug-ins all the time!

The name ASABI, which means, "of unusual birth" was chosen by Mateus because it speaks to the unique nature of this pedal, as well as his own family heritage. Keep reading below to learn more about how the ASABI can bring your tone to life in new and creative ways!


To push the distortion even further into clipping, and to cut through the mix perfectly on its own, the overdrive side of the ASABI features an incredibly touch sensitive overdrive circuit. Designed for maximum transparency, the overdrive on the ASABI is completely flat in its frequency response with no mid hump or unnatural artifacts. The ASABI overdrive is your tone, perfectly pushed. 

This circuit, which is in its own true bypass loop, can be used independently of the distortion circuit and is very useful for boosting the front end of the distortion circuit for even higher gain.

Just like the distortion side, the overdrive circuit in the ASABI features 4x clipping options to perfectly dial in your overdriven tones. 

To select a clipping preset for the overdrive channel, press and hold the DRIVE footswitch for more than 1 second and the clipping program mode will become active. When in this mode, the DRIVE led will flash to indicate that you are in programming mode. A quick tap on the DRIVE footswitch will cycle the clipping presets and you’ll be able to hear these presets change as you cycle through them, assuming that the drive circuit was active when the clipping program mode was entered. Once you arrive at a overdrive preset that you want to use, press and hold the DRIVE footswitch for more than 1 second and clipping program mode will exit.

Preset 1 - AMBER: Vintage Marshall. Two RED LED’s are used to symmetrically clip the top and bottom portions of your guitars waveform evenly. The LED’s allow MUCH higher headroom so your tone will stay more open and less compressed much like a vintage Marshall.

Preset 2 - GREEN: Classic Screamer. Two symmetrical silicon diodes give the classic drive and compression that the Tube Screamer is known for.

Preset 3 – BLUE: Asymmetric Clipping. Three asymmetric diodes (two silicon and one red LED) will clip the top and bottom portions of your guitars waveform differently resulting in a more complex and interesting tone. This sounds great when laying down aggressive rhythm parts!

Preset 4 - MAGENTA: Symmetrical Clipping. Four symmetric silicon diodes will clip the top and bottom portions of your guitars waveform evenly which gives a more focused and direct tone. Two notable pedals that uses this style of clipping are the Timmy and the King of Tone.



It's 2020 and it's time to expect more from an analog pedals! Since the BROKEN ARROW came out in 2019, our more advanced overdrive pedals have featured MIDI control over clipping presets, gain cycle options, drive eq options as well as ON/OFF of the overdrive and drive circuits and the ASABI is no exception.

We always want to make sure that our pedals are as easy to integrate into complex rigs as they are into simple rigs and MIDI makes that happen!

CABLE INFORMATION: In order to use MIDI on the ASABI, you will need a cable that converts a MIDI (DIN-5) connector to a TRS cable. This is the cable that we have used with great success and can't recommend it enough.


By default, the ASABI ships with MIDI Channel 1 being the selected channel. This can be changed by pressing and holding the DIST footswitch while applying power to the ASABI. Press the DRIVE footswitch to increment the MIDI channel number.

You’ll notice that as you continue to hold the DIST footswitch, the DRIVE LED will flash to indicate which MIDI channel you have selected. IE – 7 flashes = MIDI Channel 7. After the LED flashes, we inserted a 2-second pause so you could tell when the LED was finished flashing. The LED will continue flashing as long as you are holding down the DIST footswitch. Once you have selected the MIDI channel you want and have verified it by counting the flashes, simply release the DIST footswitch and the pedal will save this MIDI Channel to the internal EEPROM on the microprocessor and reboot.


Accessing the MIDI features of the ASABI is done by Control Changes. Below is a list of the features of the ASABI that can be accessed via MIDI as well as how to access them.

CC #1 – DIST ON/OFF (value of 127 = ON value of 0 = OFF)

CC #2 – DRIVE ON/OFF (value of 127 = ON value of 0 = OFF)

(value of 1 = Guv'nor Style)
(value of 2 = 808 Style)
(value of 3 = Asymmetric High Gain)
(value of 4 = Symmetric High Gain)

(value of 1 = 25% GAIN)
(value of 2 = 50% GAIN)
(value of 3 = 75% GAIN)
(value of 4 = 100% GAIN)

(value of 1 = Vintage Marshall Style)
(value of 2 = Tube Screamer Style)
(value of 3 = Timmy Style)
(value of 4 = King of Tone Style)


Acts as a master volume for the distortion circuit.


Acts as an overall tone control for the distortion circuit. Can be used as a master tone to adjust the pedal to brighter or darker rooms. The higher this control is run, the higher the gain and brighter the overall tone.


Sets the maximum gain for the distortion circuit.


The 12:00 position is totally flat with +/-20dB drive/cut on either side of center.


The 12:00 position is totally flat with +/-20dB drive/cut on either side of center. The mid frequency is centered around 660hz.


The 12:00 position is totally flat with +/-20dB drive/cut on either side of center.


Acts as a master volume for the overdrive circuit.


Sets the tone of the overdrive circuit. Righter is brighter.


Sets the maximum gain for the overdrive circuit.


  • True Bypass (relay) for each channel
  • Input Impedance: 1M
  • Output Impedance: 100k
  • Power Supply: DC
  • Voltage Input: 9V MAX
  • Polarity: Center Negative
  • Min Current Required: 120mA
  • Dimensions: 2.7” x 4.875″