User Manual

Eleven Rack User Guide66
To connect a microphone or other mic-level device
to Eleven Rack:
1 If using a microphone that may be damaged
by phantom power (some ribbons, some tube
condensers), flip the Phantom Power switch (la-
beled 48V) to OFF.
2 Plug your microphone cable into the Mic in-
put on the front of Eleven Rack.
3 If your microphone requires phantom power,
make sure the microphone is connected, then
flip the Phantom Power switch to ON.
4 Carefully turn the Gain control up to increase
the input level of your microphone signal.
5 If the incoming signal seems too loud or
sounds distorted, even with the Gain knob all
the way down, flip the Pad switch to ON to en-
gage the –20 dB pad.
6 On the front of the Eleven Rack, carefully turn
the Gain control to the right to increase the in-
put level of your microphone signal.
Digital Audio Input and Output
Eleven Rack provides digital inputs and outputs
for AES/EBU and S/PDIF format digital audio de-
vices. You can use these connections to record
from digital sources, use external digital effects,
or send Pro Tools audio to an external digital re-
corder.
To connect a digital device to Eleven Rack, do one
of the following:
• Connect the AES/EBU output on the device to
the AES/EBU input on Eleven Rack, and the
device’s AES/EBU input to Eleven Rack’s
AES/EBU output, with two AES/EBU-format
XLR cables.
– or –
• Connect the S/PDIF output on the device to
the S/PDIF input on Eleven Rack, and the de-
vice’s S/PDIF input to Eleven Rack’s S/PDIF
output port, using two 75-ohm coaxial cables
with male RCA connectors on both ends.
Digital Device Sample Rates
When connecting to external gear digitally,
Eleven Rack and Pro Tools must be set to the
same sample rate and digital format as your dig-
ital device. Pro Tools must also be set to clock
from the digital device, or no audio can pass be-
tween them.
To configure Pro Tools to interface with a digital
device:
1 Choose Setups > Hardware Setup.
2 Select AES External or S/PDIF External from the
Clock Source pop-up menu, to match with the
device.
3 Change the sample rate of your external de-
vice to match the rate you are using or plan to
use in your Pro Tools session. If your device op-
erates in a limited range of sample rates, you’ll
need to stay within that range when choosing
the sample rate for your Pro Tools session.
4 Click OK.
Eleven Rack can have devices connected to
both the AES/EBU and S/PDIF ports simul-
taneously, but only one format of device can
be used at one time. You can switch be-
tween these two formats from within
Pro Tools, or from the front panel of Eleven
Rack, if using it as a standalone processor.