Universal Audio Apollo x4 User Manual

Apollo x4 Hardware Manual Controls & Connectors 26
(f) LINK
Links the controls of adjacent input channels (1+2 or 3+4) to create a stereo input pair.
When channels are linked, preamp control adjustments are applied to both channels.
Note: Only the same type of inputs can be linked (Mic+Mic or Line+Line). The
Hi-Z inputs cannot be linked.
Monitor Options
When in MONITOR Mode, the Option Buttons control the monitor options (described
as g – h below). Press the MONITOR button (12) to enter Monitor mode and enable the
monitor options.
A monitor option is active when its indicator in the lower row of the Options Display
(7) is lit, and inactive when the indicator is dim. If the indicator is unlit, the option is
unavailable.
The TALK, DIM, ALT, and FCN functions are configured in the companion Console
software application. See the Apollo Software Manual for details.
Note: In Preamp mode, the monitor options cannot be modified and the lower row
of the Options Display is unlit.
Monitor options
(g) TALK
Activates the built-in talkback microphone and the DIM function. Press and release the
button quickly to latch the function. To momentarily activate the function and deactivate
when the button is released, press for longer than 0.5 seconds.
(h) DIM
Reduces the monitor output volume level. The amount of DIM attenuation is set in the
companion Console software.
Press and release the button quickly to latch the function. To momentarily activate the
function and deactivate when the button is released, press for longer than 0.5 seconds.
(i) ALT (Alternate)
Switches the main monitor mix to an alternate set of outputs. This function is only
available when the ALT COUNT setting in the Settings>Hardware panel within the
companion Console software is set to a non-zero value.
(j) FCN (Function)
This switch can be assigned to control one of three monitoring functions. FCN is only
available when Apollo x4 is combined with other Thunderbolt-equipped Apollo models in
a multi-unit cascading configuration.
MONITORPREAMP
MONITORPREAMP
OPTICAL
OUT
IN
OFF ON
12VDC
POWER
1
2 R
LINE OUT MONITOR
3
4
LINE OUT
MIC/LINE 4 MIC/LINE 3 MIC/LINE 2 MIC/LINE 1
L
OPTICAL
OUT IN
OFF ON
12VDC
POWER
1
2 R
LINE OUT MONITOR
3
4
LINE OUT
MIC/LINE 4 MIC/LINE 3 MIC/LINE 2 MIC/LINE 1
L
1 2 1 2
a b c d e f
g h i j k l
43
8
7
12
5
6
9 10 11
161718
21
20
19
15
13 14
1 2

Universal Audio Apollo x4 Specifications

General

Audio Interface Type	Thunderbolt 3
Number of Preamps	4
A/D Resolution	24-bit/192kHz
DSP	Yes
Phantom Power	Yes
Simultaneous I/O	12 x 18
Preamp Type	Unison
Software Compatibility	macOS, Windows
Power Supply	External Power Supply
Analog Inputs	4 x XLR/TRS combo
Analog Outputs	2 x Monitor TRS, 4 x Line TRS
Digital Inputs	ADAT, S/PDIF
Digital Outputs	ADAT, S/PDIF
Headphone Outputs	2