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Apogee Symphony I/O MKII Pro Tools HD 24X24

Multi-channel audio interface featuring intuitive touchscreen, future-proof modularity and flagship sound quality with one 16 analog I/O module and one 8 analog I/O module

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Apogee Digital
Included with your purchase:
  • Free Shipping (USA)
  • Free Tech Support
  • Free Extended Warranty
Our Price: $6,490.00

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Product Description
Additional Information
  • Product Description

    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 the Digilink port on 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.

    Symphony I/O Mk II is a multi-channel audio interface featuring Apogee’s newest flagship AD/DA conversion, modular I/O (up to 32 inputs and outputs), intuitive touchscreen display and optional world-class microphone preamps. Designed to deliver professional sound quality for audio recording, mixing and mastering, Symphony I/O Mk II is the ultimate music production centerpiece for any modern studio.

    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
    • THD+N:
    • -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


    • 90-240VAC, 50-60Hz, 150W

    Operating System:

    • HD: Any Mac or PC running 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


    • 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 via DigiLink port (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 Digilink port)
    • Easy I/O calibration with front panel touchscreen
    • Ultra-low latency performance
    • Intuitive touchscreen display and front panel control
    • Option card slot for future platform flexibility
    • Designed in California, Built in the U.S.A.
  • Additional Information

    Condition New
    Width 17.75 in
    Depth 3.5 in
    Height 11.5 in
    Chassis 19-in. Rackmount
    Rack Spaces 2u
    Digital Inputs 10
    Analog Inputs 24
    Input Connectors digital rca, Analog DB25, Optical, BNC, Digital RCA
    Digital Outputs 8
    Analog Outputs 26
    Output Connectors Analog DB25, Optical, BNC, Digital RCA
    Computer Connection Digilink Mini
    Clock I/O In, Out
    Maximum Sampling Rate 192 kHz
    Digital Format AES/EBU, S/PDIF, ADAT
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