Apogee Symphony I/O MkII HD 32x32 Analog Interface for Pro Tools HD


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  • Factory configured with two 16x16 Analog I/O cards for 32 simultaneous inputs and outputs.

    Symphony I/O Mk II HD is designed for the Pro Tools HD user who needs a multi-channel audio interface with the best sound quality at an incredible cost per channel value. Whether using a Mac or PC based studio, Symphony I/O Mk II HD can connect directly to your Pro Tools HDX, Pro Tools HD Native or Pro Tools Core/Accel systems.

    Symphony I/O Mk II HD can be utilized alongside or in place of Avid® or Digidesign® interfaces for Pro Tools HD. In fact, each I/O module installed in Symphony I/O Mk II HD appears and functions in Pro Tools HD the same if it were a separate Avid HD I/O interface, so set up is easy and you can take advantage of important Pro Tools features such as sample-accurate delay compensation.

    A single Symphony I/O Mk II HD unit can have up to 32 simultaneous analog I/O, so you can have more channels with less rack gear.  Need even more channels?  You can utilize multiple units simultaneously, with one Symphony I/O Mk II HD per every Pro Tools HD port in your system. Calibrating your I/O is easy with Symphony I/O Mk II HD’s front panel touchscreen.


    • Best performance of any multi-channel Pro Tools HD interface
    • Best cost per channel value of any Pro Tools HD interface solution
    • Connects directly to any Pro Tools HD system (Mac or PC)
    • Emulates Avid HD I/O interface, including sample-accurate delay compensation
    • Connect multiple units in a single system (1 unit per HD port)
    • Easy I/O calibration with front panel touchscreen
  • Analog to Digital THD+N: -115dB @ 22dBu (0.00020%) unweighted
    Dynamic range: 122dB A weighted
    Maximum input levels:
    +4dB setting: +24dBu
    -10dB setting: +6dBV
    Frequency response at 44.1kHz: 1-20,000 Hz (+/- 0.05dB)
    Input impedance: 10K
    Digital to Analog THD+N: -119dB @ 21dBu (0.00014%) unweighted
    Dynamic Range: 126dB A weighted
    Max output levels – to +24dBu
    Frequency response at 44.1 kHz: dc to 20kHz (+/- 0.05dB)
    Output impedance: 25 Ohm
    Outputs are balanced through Apogee’s proprietary Perfect Symmetry Circuitry (PSC)
    Headphone Output 1 stereo 1/4 headphone output on front panel
    -110dB @19dBu into 600 Ohm (=80mW)
    -101dB @14dBu into 32 Ohm (=470mW)
    Dynamic Range: 121db A weighted
    Output: Apogee’s proprietary Constant Current Drive™ provides smooth frequency response with any headphones
    Power 90-240VAC, 50-60Hz, 150W
    Operating System Any Mac or PC running Pro Tools HD 9 or greater
    Software Compatibility Pro Tools HD 9 or greater
    Package Contents Symphony I/O Mk II Interface
    Power Cable
    Quick Start Guide
    Warranty Booklet
    Symphony I/O Mk II Dimensions Inches: 17.75 (19 with Rack Ears) x 11.5 x 3.5
    Centimeters: 45 (48.26 with Rack Ears) x 29.2 x 8.9
    Packaging Dimensions Symphony I/O Chassis Box
    Inches: 22.875 x 17.75 x 9.25
    Centimeters: 58.1 x 45.1 x 23.5
    I/O Module Box
    Inches: 13.75 x 12.25 x 3.25
    Centimeters: 34.9 x 31.1 x 8.3
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