User Manual

4
2 Hookup
2.1 Front Panel Connections and Controls
Quantum-series
Owner’s Manual
Talkback mic and controls (Quantum). Quantum features an onboard talkback
microphone. Press the Talk button to patch the signal to the selected mixes. To
control the level of the onboard Talkback mic, select the “c” (Comm) channel in the
preamp control section and use the encoder to adjust the level.
Power User Tip: Talkback routing for Quantum is handled inside your DAW. It will show
up as an input stream in your DAW I/O set-up.
Input meters. These eight-LED meters show the input level of the analog inputs on
your Quantum-series interface. The green LEDs will illuminate when the input signal
ranges from -50dBFS to -4dBFS. The yellow LEDs will illuminate when the input signal
reaches -2dBFS. The red Clip LED will illuminate when your input signal reaches
-0.5dBFS. At this level, the signal will begin to overload the analog-to-digital
converters and exhibit signs of clipping. Use the gain controls to keep the signal
below this level.
Main. The Main knob can control any or all of the outputs on the rear panel of your
Quantum and has a range of -80 dB to 0 dB. In addition to level control, the main
outputs have the following controls:
• Meters. These meters display the signal level received from Driver Returns 1 and
2 (Main Left/Right). These meters have the same range as the input meters (-50
dBFS to -0.5 dBFS) and are before the main output level.
• Dim / Mute (Quantum). This button controls both the Dim and Mute functions
for the Main Outputs. Press the button and release it to lower the outputs signal
by 20 dB. Press and hold the button to Mute the Main Output signal. The button
will illuminate yellow when Dim is active and red when Mute is active. These
functions are also available from within UC Surface and Studio One.
• Mono (Quantum). Press this button to sum the Main stereo output signal to
mono. The mono function is also available from within UC Surface and Studio One.
Power User Tip: Use the Mono feature to verify mono compatibility and to check for
phase cancellation in your stereo mixes.
Headphones. Your Quantum-series interface provides two/one headphone
output(s), each with its own level control. Each headphone output is provided with
its own unique output stream to route audio directly from your DAW (Quantum:
playback streams 11/12 and 13/14; Quantum 2: playback streams 5/6). These streams
are labeled as “Phones 1” and “Phones 2” in UC Surface. From UC Surface, any mix can
be routed to either headphone output. By default on Quantum, Headphone 1
mirrors the Main Output and Headphone 2 mirrors Output 1-2.
A/B (Quantum 2). The A/B button allows you to switch between two mixes. When
UC Surface is not accessed, this will toggle between the Headphone streams (5/6)
and the Main Mix streams (1/2). When UC Surface is active, you can choose the “B”
source from any mix pair.
Power button and Sync light. The lighted ring around the power button of your
Quantum is a clock source / sync indicator. It lets you know if you unit is receiving
word clock correctly.
• Blue. When this light is blue, your Quantum is correctly synced via Thunderbolt,
word clock, ADAT, or S/PDIF
• Flashing red and blue. Quantum is in the process of trying to sync to a received
clock signal.