Using The Optical Connections - Focusrite Clarett+ 8Pre User Manual

2 . Using the optical connections

In addition to eight analogue inputs, the Clarett+ 8Pre has an ADAT input port (OPTICAL IN) which
can provide an additional eight audio inputs at 44.1/48 kHz sample rate, or four at 88.2/96 kHz.
Using a separate 8-channel microphone preamplifier equipped with an ADAT output – such as the
Focusrite Clarett OctoPre – provides a simple and excellent method of expanding the Clarett+ 8Pre's
input capability.
Clarett+ Octopre
8ch Mic Amp
Clarett+ 8Pre
Computer running DAW
and Focusrite Control
The Clarett OctoPre's OPTICAL OUT port is connected to the Clarett+ 8Pre's OPTICAL IN port with a
single TOSLINK optical cable. Stable word clock synchronisation may be achieved by connecting the
Clarett+ 8Pre's WORD CLOCK output to the Clarett OctoPre's WORD CLOCK IN and setting the Clarett
OctoPre to use this as its sync source. Alternatively, the Clarett+ 8Pre may be set to synchronise
via the ADAT format signal at the OPTICAL IN port. To do this in Focusrite Control go to
Settings Clock Source
and set
NOTE: when connecting two digital devices by any method, always ensure both are set to use the
same sample rate.
You can route additional ADAT inputs in the same way as other inputs in Focusrite Control. ADAT
inputs can form part of any musician's headphone mix, as needed.
If a suitable D-to-A converter with an ADAT input is available, the OPTICAL OUT port may be used
in the opposite manner; for example, additional outputs from the DAW may be converted into the
analogue domain to allow the use of an external hardware mixing console to mix down a large
number of DAW tracks.
Inputs 1 & 2 on front panel
AC ONLY 100-240V~ 50/60Hz 30W 48 1-8
R
5-8 96 1-4
OUT
3-4 192 1-2
OUT
IN
IN
ADAT WORD CLOCK LINE OUTPUTS
THIS EQUIPMENT MUST BE EARTHED BY THE POWER CORD
CET APPAREIL DOIT ETRE MIS A LA TERRE PAR LE CORDON D'ALIMENTATION
USB
Inputs 1 & 2 on front panel
ADAT
to
MIC/LINE INPUTS
8 6
7
INSERT 8 INSERT 7 INSERT 6 INSERT 5
Optional Word Clock link
Optical ADAT connection (TOSLINK)
.
1
5 4 3
INSERT 4 INSERT 3
2
TIP = SEND RING = RETURN INSERT 1/2
Device
18