Using the Type A - Type B USB cable included in the box, connect Symphony I/O's USB port to an Apple Intel Mac USB port. If the included USB cable isn't used, ensure that the cable used is certified for USB 2.0 operation.
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Symphony Audio Interface Mode |
When Audio Interface Mode is set to Symphony PCI, the USB port is used for updating firmware only. See Updating Firmware for details.
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Pro Tools HD Audio Interface Mode |
When Audio Interface Mode is set to Pro Tools HD, a USB connection between Symphony I/O and an Intel Mac provides the link between Apogee Maestro software and Symphony I/O, in order to make calibration, meter configuration, digital format and other settings.
Symphony I/O's clock source and sample rate are set from Pro Tools software, and don't require the USB connection.
The USB connection is only required to make Maestro settings, and may be removed once settings are complete.
Note that the audio and USB connections don't have to be made to the same computer, allowing Symphony I/O to be connected to Pro Tools HD cards installed in Apple Mac G5 or Windows computers while running Maestro on an Apple Intel Mac.
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Standalone Interface Mode |
When Audio Interface Mode is set to Standalone, a USB connection between Symphony I/O and an Intel Mac provides the link between Apogee Maestro software and Symphony I/O, in order to make calibration, meter configuration, digital format and other settings.
Symphony I/O's clock source and sample rate may be set using the front panel encoders, and don't require the USB connection.
The USB connection is only required to make Maestro settings, and may be removed once settings are complete.
Note that the audio and USB connections don't have to be made to the same computer, allowing Symphony I/O's Optical or AES I/O to be connected to an Windows computers while USB is connected to an Apple Intel Mac.
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USB Audio Interface Mode |
When Audio Interface Mode is set to USB Audio, a USB connection between Symphony I/O and an Intel Mac provides 16 channels of bi-directional audio at sample rates up to 96kHz, as well as the link between Apogee Maestro software and the Symphony I/O.
Symphony I/O's clock source is fixed to Internal.
When transmitting audio via Symphony I/O's USB connection, it's recommmended to connect directly to the Mac, avoiding the use of USB hubs.
