User Manual

6
2 Hookup
2.2 Back Panel Connections
Quantum-series
Owner’s Manual
Clock In and Out. These BNC connections allow Quantum-series interfaces to
receive and transmit word clock to and from other digital audio devices.
Power User Tip: In UC Surface, when using the BNC Clock input, you will need to set “BNC”
as the Clock Source and set the sample rate to correspond to that of the external device.
See Section 4.1 for details. A 75Ω BNC word clock cable is required to achieve proper sync.
S/PDIF In and Out. The S/PDIF connections allow two channels of audio to be
transmitted and received at rates up to 24-bit, 96 kHz. The S/PDIF I/O also allows all
Quantum-series interfaces to send and receive word clock to external digital devices.
Power User Tip: In UC Surface, you will need to set “S/PDIF” as the Clock Source and the
sample rate to correspond to the external device when using an external S/PDIF device as
your master clock. See Section 4.1 for details.
ADAT – S/MUX In and Out. These are the ADAT – Dual S/MUX connections
for your external digital devices. When recording or playing back at 44.1
or 48 kHz, each ADAT I/O will provide 8 of the 16 available channels
consecutively, from left to right. When recording or playing back at 88.2 or
96 kHz, each connection will provide four of the available eight channels.
These inputs and outputs do not function at 176.4 or 192 kHz:
ADAT 1 Input ADAT 2 Input ADAT 1 Output ADAT 2 Output
44.1 / 48 kHz Channels 11-18 / 7-14 Channels 19-26 / 15-22 Channels 17-24 / 9-16 Channels 25-32 / 17-24
88.2 / 96 kHz Channels 11-14 / 7-10 Channels 15-18 / 11-14 Channels 17-20 / 9-12 Channels 21-24 / 13-16
When connecting a DigiMax DP88 to your Quantum interface, the ADAT
connections will also send and receive preamp control information for the DigiMax
DP88, so that it can be controlled directly from UC Surface or Studio One.
Power User Tip: In UC Surface, you will need to set “ADAT 1” as the Clock Source and the
sample rate to correspond to the external device when using an external ADAT device as
your master clock. See Section 4.1 for details. The ADAT 2 input cannot be used to receive
word clock.
Thunderbolt ports. Use these ports to connect your Quantum-series interface to
your computer. The second Thunderbolt port can be used to connect other
Thunderbolt devices to your computer.
Power User Tip: Your Quantum interface supports clustering over Thunderbolt. In
addition to allowing you to use your Quantum-series interface as a Thunderbolt hub, this
allows you to chain up to four Quantum interfaces, aggregated over Thunderbolt, for
higher I/O counts. See Section 5 for more information.