Cascading Multiple Units - Prism Sound Orpheus Operation Manual

Prism Sound Orpheus
· During installation, you will be prompted to connect the Orpheus to the FireWire port of the PC. Do
so, then click 'Next':
The Orpheus device's ports should now be visible to Windows and any applications as both ASIO and
WDM audio ports, and a bidirectional MIDI port. Note that only the first two ADAT ports (if enabled by
the Orpheus Control Panel applet) are visible in the WDM case.
· Remember to register your Orpheus at http://www.prismsound.com.
4.3

Cascading multiple units

Multiple Orpheus units can be used on the same PC or Mac by simply 'daisy-chaining' their FireWire
cables, i.e. connecting the second unit to the spare FireWire connector on the unit already connected
to the host.
The number of units which can be used successfully depends on the bandwidth of the FireWire bus,
and also on the processing power of the host computer and its audio software. The latter depends
mostly on the host's CPU and RAM fitment; for more information see the
Bus-bandwidth limitations are absolute, and apply no matter how powerful the computer is. They
depend on the sample rate:
It is not recommended to mix Orpheus and other FireWire devices on the same FireWire interface.
This can lead to loss of audio channel capacity, or even loss of audio.
© 2008 Prism Media Products Ltd
Operation Manual
Sample rate
44.1kHz, 48kHz
88.2kHz, 96kHz
176.4kHz, 192kHz
Stability and latency
Maximum number of units
6
3
1
Revision 1.05
section.
1.20