Rear Panel - Universal Audio Apollo x4 Hardware Manual

Rear Panel

Refer to the illustration below for numbered control descriptions in this section.
13
Note: All rear panel ¼" jacks can accept unbalanced TS (tip-sleeve) or balanced
TRS (tip-ring-sleeve) plugs.
OPTICAL
OUT
21
20
POWER
19
OFF
(15) Mic/Line Combo Inputs
The jacks for preamp channels 1 – 4 accept either a male XLR plug for connecting to the
mic input, or a ¼" phone plug for connecting to the line input.
The input jack that is used for the preamp channel (mic or line) is specified with the
Input Select button (8-a).
Caution:
To avoid potential equipment damage, disable +48V phantom power on
the channel before connecting or disconnecting its XLR input.
(16) Monitor Outputs
Connect the powered monitor speakers (or speaker system amplifier inputs) here. Volume
is controlled with the Level knob (1) when MONITOR is selected (8) with the MONITOR
button (12). The Monitor Outputs are DC coupled.
(17) Line Outputs 3 – 6
These ¼" phone outputs are accessed via software (Console or DAW). Line outputs 3 – 6
are typically used to send audio to other equipment. The Line Outputs are DC coupled.
OPTICAL
OUT
POWER
OFF
Apollo x4 Hardware Manual
1 2
LINE OUT LINE OUT MONITOR
3 1
IN
4 2
ON 12VDC
18 17
Rear panel elements
LINE OUT LINE OUT MONITOR
3 1
IN
4 2
ON 12VDC
a b
g h
9 10 11
L
MIC/LINE 4 MIC/LINE 3
R
16 15
PREAMP
L
MIC/LINE 4 MIC/LINE 3
R
c d e f
i j k l
28
12
1 2
MIC/LINE 2 MIC/LINE 1
MONITOR
MIC/LINE 2 MIC/LINE 1
Controls & Connectors
14