User Manual

INSTALLING THE 8PRE HARDWARE
19
OPERATING THE 8pre AS A CONVERTER
As explained earlier in “Using optical I/O to
operate the 8pre as an 8-channel expander” on
page 16, the 8pre can serve as an 8-channel analog-
to-digital converter when disconnected from the
computer and instead connected to another device
equipped with an ADAT optical input. For
example, you could connect the 8pre optical output
to the optical input on a MOTU audio interface,
such as the 828, 828mkII, Traveler, 896, 896HD or
UltraLite. The 8pre then serves as an 8-channel
expander that adds an additional 8 mic inputs to
the interface. The benefit of connecting the 8pre in
this manner (instead of as another FireWire
interface) is that you can seamlessly integrate the
8pre’s inputs into the on-board no-latency CueMix
monitor mixing in the interface, since the 8pre’s
inputs are fed into CueMix via the interface’s
optical inputs.
If the device to which you are connecting the 8pre
supports 2x optical sample rates (88.2 or 96 kHz),
you’ll need to use both banks of connectors as
discussed in “Optical operation at 88.2 or 96 kHz”
on page 16.
guitar
(with or without an amp)
ADAT optical Out
Figure 3-5: Using the 8pre as an optical converter.
USB2
8pre rear panel
Mac
828mkII-USB
(UltraFast USB 2
audio interface)
ADAT optical In
quarter-inch
analog outs
synthesizer
other inputs
(mics, guitars, etc.)
mic
!8pre Manual/Mac Page 19 Tuesday, October 12, 2010 5:52 PM