Apogee Digital Symphony PCIe Card - Used  From Apogee

Introducing Symphony, a multi-channel PCI Express card designed specifically for use with Apple's Macintosh computers.

...express yourself.
Apogee's Symphony PCI Express card is a digital computer interface that is based on the PCI-Express architecture for Apple's Macintosh computers. Controlled by Apogee?s Maestro software, Symphony features 32 channels of digital I/O on a single PCI-Express card format. With support for sample rates up to 192 kHz, Symphony can be used as a digital router or patch-bay when connected to external converters or other digital outboard equipment. Software drivers for Symphony feature extensive routing capabilities and very low latency performance making very high channel, high quality native recording with Apogee converters a reality. Symphony is the professional audio standard for native workstations.

With the ability to install three cards in Apple's G5, Symphony is the only connectivity solution that offers high end, professional users the capability to utilize up to 192 channels of audio simultaneously in a single computer, providing more than enough I/O for even the biggest scoring sessions.

take control with maestro
Maestro is an innovative software interface between OS X applications (OS 10.4 and above) and Apogee hardware. Maestro is capable of controlling Apogee hardware I/O connected to the computer via FireWire, Symphony, (Apogee's PCI Express card), or both at the same time.

maestro at a glance:
* Control panel for Ensemble, Rosetta 800, Rosetta 200, AD-16X and DA-16X.
* 2 Low latency mixers per connected device
* Complete I/O routing matrix
* Mic preamp controls for Ensemble
* Output/headphone gain controls for Ensemble