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Apogee Symphony I/O MKII Thunderbolt Chassis - No module included

Symphony I/O MKII Thunderbolt Chassis - No module included, Apogee

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List Price: $1,695.00
PAS Deal: $1,695.00
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Availability: Usually Ships in 1 to 2 Business Days
Product Code : SYM2


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.

The new Symphony I/O Mk II comes with direct connectivity to one of three different platforms – Thunderbolt™, Pro Tools® HD or Waves SoundGrid® network.


  • Best AD/DA conversion of any Thunderbolt™ audio interface
  • Up to 32 channels of modular analog I/O with optional 8 mic preamps
  • Best per-channel value of any interface in its category
  • Choice of Thunderbolt, Pro Tools® HD (Mac/PC) or Waves SoundGrid® connectivity
  • Ultra-low latency performance
  • Intuitive touchscreen display and front panel control
  • Designed in California, Built in the U.S.A.

Input and Output Flexibility

There is a Symphony I/O Mk II solution for everyone; the home studio, project studio, commercial recording studio and scoring stage. Choose from four base I/O configurations, 2×6, 8×8, 16×16, or 8×8 with 8 mic preamps and easily expand as your studio grows. With two module slots and the capacity for up to 32 inputs and outputs of A/D & D/A conversion per unit, Symphony I/O Mk II offers the best per-channel value of any interface in its category.

Legendary Sound Quality

Apogee engineers have made it their passion to improve every new flagship product by using the latest in electrical components and designing optimized circuitry that often exceeds the expectations of the component manufacturer. This is the Apogee Advantage. Symphony I/O Mk II is the culmination of this 30 year commitment and raises the bar on all Apogee products before it with even better audio clarity and sonic transparency. In fact, when equipped with either the new 8×8 or 16×16 Mk II I/O modules, Symphony I/O Mk II outperforms all other multi-channel audio interfaces available for Pro Tools HD or Thunderbolt based systems, making it the flagship audio interface for the entire professional audio industry and the obvious choice for countless GRAMMY winning artists, producers, songwriters and engineers.


For connecting to a Thunderbolt equipped Mac running Logic Pro X or any other Core Audio compatible DAW. Up to 32 simultaneous inputs and outputs per unit/system and latency as low
as 1.35 ms in Logic Pro X (96kHz / 32 buffer).


Analog to Digital:

  • THD+N: -114dB @ 22dBu (0.00020%)
  • 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: -117dB @ 21dBu (0.00014%)
  • Dynamic Range: 129dB 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:

  • Thunderbolt: Mac OS only 10.9.5 and above
  • 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

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