Interconnections, Installation notes, Connection notes – Universal Audio Apollo x16 Heritage Edition Rackmount 18x20 Thunder3 Audio Interface with Real-Time UAD Processing User Manual
Page 22: Installation notes connection notes
Interconnections
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Apollo x16 Hardware Manual
Interconnections
Installation Notes
• Apollo X may get hot during normal operation if it doesn’t receive adequate airflow
circulation around its chassis vents. For optimum results when mounting Apollo X
in a rack, leaving at least one empty rack space above the unit to allow adequate
airflow for cooling is strongly recommended.
• If Apollo X is installed near other heat generating equipment, external cooling
(such as a fan) may be needed to keep the ambient temperature below 104ºF
(40ºC).
• As with any sound system, the following steps are recommended to avoid audio
spikes in your speakers and headphones:
1. Apply power to the speakers last, after all other devices (including Apollo X )
are powered on.
2. Turn off the speakers first, before all other devices (including Apollo X) are
powered off.
3. Remove headphones from ears before powering Apollo X on or off.
Connection Notes
Thunderbolt
• Apollo X must be connected via a Thunderbolt 3 cable (not included) to
computers that have Thunderbolt 3 ports.*
• Connect only one Thunderbolt 3 cable between Apollo X and the host computer.
Thunderbolt is a bidirectional protocol.
• Apollo X cannot be bus powered via Thunderbolt. The included external power
supply must be used.
• Thunderbolt bus power is supplied to downstream (daisy-chained) peripheral
devices. Apollo X must be powered on for the daisy-chained peripheral to receive
Thunderbolt bus power.
*Note: With Mac computers only, Apollo X can be connected to Thunderbolt 1
and Thunderbolt 2 computer ports via the Apple Thunderbolt 3 to Thunderbolt 2
adapter. Visit
help.uaudio.com
for details.
Apollo Expanded
• When more I/O and/or DSP is needed, up to four Apollo interfaces and six
UAD devices total can be cascaded together via Thunderbolt in a multiple-unit
configuration. For complete details about multi-unit cascading, refer to the