GuitarJack Stage

Studio Quality I/O and Pedal Control for Desktop and Mobile

GuitarJack Stage

GuitarJack Stage: Studio Quality I/O and Pedal Control for Desktop and Mobile

Discontinued. GuitarJack Stage is no longer available for purchase.

Transform your compatible computer or mobile device into a guitar amp and effects rig!

Control your favorite guitar software on stage and in the studio with assignable knobs and foot switches.

GuitarJack Stage is two accessories in one: a rugged pedal controller and a premium quality audio interface for compatible Mac, PC, iOS and Android systems. Featuring studio quality I/O with 24-bit AD/DA converters, 1/4 inch jacks for all connections, an aluminum chassis, customizable pedal controls, and multi-platform compatibility, GuitarJack Stage is one of the most versatile pieces of gear on the market. GuitarJack Stage is device powered. Add an external power supply to charge an iPhone, iPad, or iPod touch (or reduce power consumption for compatible Android devices) while you play!

  • Studio Quality 24-bit 2-in/2-out Audio Interface

    Plug in an instrument and mic/line source to record or play live with incredible sound. The instrument input is optimized for guitar, with warm, mojo-infused tone, while the stereo mic/line input is ultra clean. The 24-bit AD/DA converters by renowned audio designer, Joe Bryan, move two channels in and out with clarity and vitality.

  • Control Guitar Effects and Switch Presets

    Five assignable knobs and four foot switches make it possible to control guitar effects and switch presets for use on stage while the 1/4 inch instrument and 1/4 inch stereo mic/line inputs are perfect for home or studio recording. Works with FourTrack, StudioTrack, GuitarTone and many popular third party applications.

  • Expression Pedal Input

    Add a standard expression pedal to control wah effects, volume, and more.

    Dual Mic Breakout Cable

    Mic two sources at the same time by adding this custom 4 foot TRS to 2XLF Y cable. Ideal for when you want to get a stereo recording, record an amp and vocals, or even capture two vocals at once!

Made in U.S.A.
Sonoma is dedicated to being socially and environmentally responsible while creating the highest quality tools for musicians. Sonoma's CSR

"Best of Show"
2014 Macworld/iWorld

GuitarJack Stage Features

  • 2-in/2-out audio interface and guitar-pedal-style controller
  • 24-bit/48kHz AD/DA converters
  • Mono Hi-Z ¼ inch input for guitar and bass with 60 dB of gain
  • Stereo mic/line ¼ inch input for vocals or keyboards with 60 dB of gain
  • 2 analog input level knobs with LED metering
  • Expression pedal jack to control wah, volume, or other effects
  • 2 line level ¼ inch outputs (left and right) for monitors, amps, or a mixer
  • 1 stereo ¼ inch output for headphones (stereo line-out) - use headphones with iPhone 7, iPhone 8, iPhone X (and earlier compatible devices), and charge while you play!
  • Rugged aluminum chassis
  • 5 Knobs, 4 foot switches, and 4 LEDs control MIDI enabled software
  • Works with dynamic and battery powered condenser mics. Provides 3.3 V Plug-in Power for mono or stereo Electret Condenser microphones.
  • Device powered (no batteries or external power required for any of the above features). To charge your iPhone, iPad, or iPod touch (or reduce power consumption for compatible Android devices) while you play, add a standard guitar pedal 9V DC power supply (e.g. Godlyke Power-All or Truetone 1-SPOT). Power supply not included.

GuitarJack Stage Includes

  • GuitarJack Stage
  • Lightning™ Cable with Rugged Connector 1.2m (47 inches)
  • OTG (Micro USB) Cable Adapter* 1.2m (47 inches)
  • Standard USB Host Cable 1.2m (47 inches)
  • Free GuitarJack Stage Control iOS App to Control Many Third-Party iOS apps that support MIDI Input

*Android users only: The first batch of GuitarJack Stages include a 3 inch OTG adapter for Android that attaches to the included standard USB cable. This solution works. Future GuitarJack Stages will include a custom OTG (Android) cable. If you are an Android user who would prefer the custom cable, please email

GuitarJack Stage Compatibility (Subject to Change)

Compatibility is subject to change.
Email support with questions.

GuitarJack Stage Tech Specs

Headphone Output

  • Stereo 1/4 inch (6.5mm) output
  • Continuously variable gain
  • Supports USB volume & mute controls
  • Maximum output level (into 32 Ohms): 1.09 Vrms (34 mW)

Line Output

  • Separate 1/4" (6.5 mm) unbalanced outputs for each channel
  • Fixed output level independent of headphone output volume changes
  • Maximum output level (into 10 kOhms): 1.00 Vrms (+2.2 dBu)

Line/Mic Inputs

  • Stereo 1/4 inch (6.5 mm) input
  • Continuously variable gain
  • Provides 3.3 V Plug-in Power for mono or stereo Electret Condenser microphones

Instrument Input

  • Mono 1/4 inch (6.5 mm) input
  • Continuously variable gain
  • High-impedance instrument input
  • Discrete Class-A input buffer

CV (Control Voltage) Input

  • One 1/4 inch (6.5 mm) TRS input
  • TRS or TS (mono) cable compatible
  • Bias provided for passive pedals

  • Pedal and CV Compatibility

    • Roland/Fatar style (TRS) expression pedals (includes Roland, Fatar, Nord, Moog, M-Audio, Clavia, CME, Emu, Kurzweil, Oberheim, Voce, and others)
    • Line 6 style (TR) expression pedals
    • Active CV sources (connect using mono cable)
    • Passive volume pedals (connect pedal output to CV input with mono cable)
    • Note: Not compatible with Yamaha FC7 and similar (Korg, etc.) expression pedals without a polarity converter


  • Expression Pedal Polarity: Roland/Fatar style (Tip=CV, Ring=Bias), and Line 6 style (CV+Bias=Tip)
  • Input impedance: 10 kOhms
  • CV input voltage for full-scale value: +3.3 VDC
  • CV input voltage for minimum value: 0.0 VDC
  • Bias provided to TRS Tip Connector: +3.3 VDC, 100 kOhms
  • Bias provided to TRS Ring Connector: +3.3 VDC, 6.8 kOhms


  • Aluminum chassis, metal input level knobs, metal switches, and plastic chicken head knobs

GuitarJack Stage Dimensions (Without Packaging and Cables)

  • Height: 2.9 in. (7.4 cm)
  • Width: 10.2 in. (26.1 cm)
  • Depth: 6.2 in. (15.7 cm)
  • Weight: 2.1 lbs. (963 g)

Packaging Dimensions (Including Cables)

  • Height: 7.9 in. (20 cm)
  • Width: 10.94 in. (27.8 cm)
  • Depth: 5 in. (12.7 cm)
  • Weight: 3.2 lbs. (1.45 kg)


© 2017 Sonoma Wire Works. GuitarJack and GuitarTone are a trademarks of Sonoma Wire Works. Apple, iPad, iPhone, iPod touch, Mac, the Mac logo, Mac OS, Retina, GarageBand, and Logic are trademarks of Apple Inc., registered in the U.S. and other countries. iPad Air, iPad mini, and Lightning are trademarks of Apple Inc. iOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license. Android is a trademark of Google, Inc. Samsung is a trademark of Samsung in the United States or other countries. Windows and the Windows logo are trademarks of the Microsoft group of companies.

"Made for iPod," "Made for iPhone," and "Made for iPad" mean that an electronic accessory has not been designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod, iPhone, or iPad may affect wireless performance.

The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.

GuitarJack Stage is no longer available.

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