GuitarJack is coming …

A new audio interface from Sonoma. Not only does the device look good, but with GuitarJack ‘enhanced’ apps too this could be amazing!

Sonoma’s GuitarJack page describes it like this:

The in-app songtool gives you tons of options to configure the GuitarJack. Record from both inputs at the same time, set into monitor levels, set Impedance, Range, and more!

Here are the full specifications.

Line/Headphone Outputs

  • One 1/8″ (3.5mm) stereo unbalanced output
  • Continuously variable gain
  • Responds to iPod volume up/down buttons


  • Maximum output level (into 16ohms): 1.23Vrms (95mW)
  • Maximum output level (into 10kohms): 1.30Vrms (+4.5dBu)
  • Frequency response (20Hz to 20kHz): +0.02/-0.20dB
  • Noise level (RMS, A-weighted): -95dB
  • Dynamic range (RMS, A-weighted): 95dB
  • THD (600mVrms into 10kohms): 0.0025% (-92dB)
  • THD (0dBV into 10kohms): 0.0036% (-89dB)
  • THD (0dBV into 32ohms): 0.026%
  • Stereo crosstalk (100Hz to 10kHz): -70dB

Line/Mic Inputs:

  • One 1/8″ (3.5mm) stereo unbalanced input
  • Selectable pad
  • Continuously variable gain


  • Minimum input impedance: 4.7kohm
  • Maximum input level (pad on, line-input): 6.5Vrms (+18dBu)
  • Minimum input level (boost on, full scale mic): 7.5mVrms (-40dBu)
  • Frequency response (40Hz to 20kHz): +0.06/-0.65dB
  • Noise level (RMS, A-weighted): -88dB
  • Dynamic range (RMS, A-weighted): 88dB
  • THD (-3dBFS): 0.05% (-66dB)
  • Stereo crosstalk (1kHz): -86dB

Instrument Input:

  • One 1/4″ (6.5mm) mono unbalanced input
  • Selectable pad
  • Selectable impedance
  • Continuously variable gain


  • Input impedance: 470kohm
  • Maximum instrument input level (Lo-Z Pad): 6.5Vrms (+18dBu)
  • Maximum instrument input level (Hi-Z, 1% THD): 700mVrms
  • Maximum instrument input level (Hi-Z, 10% THD): 1.5Vrms
  • Maximum instrument input level (Hi-Z, 20% THD): 2.5Vrms

iPod connection

  • Apple 30 pin
  • iPod touch (2nd generation) – Made for iPod certified
  • iPod touch (3rd generation) – Made for iPod certified
  • iPhone 3GS (not WWi certified)
  • iPhone 3G (not WWi certified)
  • Dimensions (std/metric)
  • length 2.46″/62.5mm (including 30 pin connector)
  • width 2.08″/53mm
  • height 0.62″/15.8mm
  • weight 2.25oz/65g


  • Case
  • 6061 Aluminum
  • hard anodized
  • laser etched logo
  • 1/4″ connector
  • Switchcraft
  • Nickel plated Brass
  • 10,000 insertion MTBF (with switchcraft plug)
  • Electronics
  • RoHS certified components


  1. This looks very promising, and not a million miles away from the “fantasy line-in device” I mentioned in my e-mail to palm-sounds the other week.

    Hopefully I've misread the proposed price ($199!!!) and am unsure why it is incompatible with iPhone4…?


  2. So it supports my mic… and looks really good, and what i have been looking for for a long time. But 200 dollars? what a rip off. FAIL.


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