Intel Fireface 800 - Manual (Page 42)

42 User's Guide Fireface 800 © RME
20.5 Supported Sample Rates
RME's Mac OS X driver supports all sampling frequencies provided by the hardware. This in-
cludes 32 kHz and 64 kHz, and even 128 kHz, 176.4 kHz and 192 kHz.
But not any software will support all the hardware's sample rates. The hardware's capabilities
can easily be verified in the Audio MIDI Setup. Select Audio devices under Properties of:
and choose the Fireface. A click on Format will list the supported sample frequencies.
20.6 Channel Count under Core Audio
At a sample rate of 88.2 or 96 kHz, the ADAT optical input and outputs operate in S/MUX mode,
so the number of available channels per port is reduced from 8 to 4.
It is not possible to change the number of Core Audio devices without a reboot of the computer.
Therefore whenever the Fireface 400 changes into Double Speed (88.2/96 kHz) or Quad Speed
mode (176.4/192 kHz) all devices stay present, but become partly inactive.
Single Speed Double Speed Quad Speed
Fireface Analog 1 bis 8 Fireface Analog 1 bis 8 Fireface Analog 1 bis 8
Fireface SPDIF L / R Fireface SPDIF L / R Fireface SPDIF L / R
Fireface ADAT 1 bis 8 Fireface ADAT 1 bis 8 Fireface ADAT 1 bis 8
Fireface ADAT 9 bis 16 Fireface ADAT 9 bis 16 Fireface ADAT 9 bis 16
20.7 FireWire Compatibility
RME's Fireface 800 should be fully compatible to any FireWire port found on Apple Mac com-
puters. Problems are known with FireWire controllers from LSI Agere Revision 6. Although we
tested compatibility with lots of models, total compatibility can not be guaranteed. In case of
trouble please contact RME.