Apogee Symphony I/O

Apogee Electronics today unveiled Symphony I/O, a new flagship multi-channel audio interface representing 25 years of design excellence and experience. Symphony I/O delivers a totally updated and optimized circuit design for next generation sound quality, Logic and Pro Tools compatibility, modular port configuration, stand-alone operation and compatibility with PCIe, Express/34 card, USB 2.0 and Ethernet.

Symphony I/O builds upon the award-winning design approaches of Apogee’s X-Series and Rosetta Series converters, the Big Ben master clock and the Trak2 mic preamps. It also refines and updates these proven designs with fewer but more advanced components while optimizing their performance with efficient power distribution. This design improvement minimizes the audio path circuitry and maximizes sound quality. And in the tradition of the X-Series and Rosetta series, the entire audio path is DC coupled, resulting in ultra flat frequency response and extremely low phase error.

The I/O Modules are the sound and soul of Symphony I/O, and represent 25 years of Apogee R&D and design excellence. These powerful Modules deliver Apogee’s core competency, superior sounding digital audio recording. With 5 available I/O Modules, you can choose from standard configurations or customize the following: channel count, analog to digital input, digital to analog output, mic preamps and digital I/O. You compose your Symphony I/O.

Apogee Symphony I/O, modular rear port configuration

Apogee Symphony I/O, rear port configuration. Click to zoom.

With a 2-step adjustment using a single front panel encoder knob, Symphony I/O’s Audio Interface Modes (AIM) are ready for the most popular audio workstation environments. This feature allows users of Logic and Pro Tools HD for example, to easily switch back and forth between the two DAWs with the click of a knob and swap of a cable. The Symphony I/O PC-32 connector connects directly to a Symphony 64 card or a Pro Tools HD card. When using a Logic Studio Mac based system, latency is below 1.8ms at 96kHz. If USB is your preferred mode, connecting to Core Audio compatible apps like Digital Performer and Cubase is just as easy. And StandAlone mode calibrates Symphony I/O for simple and direct routing ideal for a variety of uses and applications including Pro Tools LE or Pro Tools M-Powered.

Symphony I/O is an audio hardware platform, designed to deliver the most advanced recording technology available and the flexibility, scalability, and longevity required to power the modern studio. Modular I/O design, total software control, and direct connection to all popular DAWs make Symphony I/O a long-term sound investment.

What makes Symphony I/O a great choice for your studio now and for years to come:

  • Flexible design architecture with a base unit and two I/O module slots
  • Up to 32 channels of I/O per unit
  • Future proof connectivity with PCI, USB, Ethernet and all popular digital formats
  • Compatibility with Logic, Pro Tools HD, Pro Tools LE and any Core Audio driven application
  • A/D THD+N: -113dB @ +20dBu (0.00024%)
  • D/A THD+N: -117dB @ +20dBu (0.00014%)
  • D/A Dynamic Range: 129dB A weighted
  • Apogee’s proprietary Perfect Symmetry Circuitry (PSC)
  • Software controlled AD/DA reference setting
  • Variable gain input for keyboards
  • Ultra low latency AD/DA conversion
  • Total software control of Symphony I/O with Maestro

Cue Maestro 2! Apogee’s software control application, Maestro, has been totally redesigned for Symphony I/O. Featuring a familiar single window, multiple tab interface for quick access to all device and system settings, the new Maestro makes routing, mic preamp adjustment, input and output calibration and low latency monitoring clear and easy to use. To reduce screen clutter, Maestro also features a minimized tool bar view with System Status display, volume controls and buttons to mute outputs and clear meters.

Apogee Maestro 2 software


  • Speaker, headphone, and mic preamp level control
  • Clock source, sample rate setting
  • Audio Interface Mode (AIM)
  • Minimized tool bar view with System Status, volume controls, mute and clear meters buttons
  • Software controlled A/D & D/A calibration
  • Comprehensive metering
  • Intuitive audio routing
  • 4 Soft Limit settings: -2 dB, -4 dBfs, Soft Saturate and Soft Crush

Symphony I/O is available for Mac OS only, and requires OS X 10.5.8 or later. It will be available in August 2010. Additional features will roll out in 5 monthly releases from August 2010 to December 2010.


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