Mackie TT24 Owner's Manual - Ch 4: Rear Panel Connectors
20
TT24 DIGITAL LIVE CONSOLE
TT24 DIGIT
AL LIVE C
ONS
OLE
Figure 4-1 Analog I/O
CD/TAPE A
TALKBACK
OUT
IN
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
LINE
INSERT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CTR/MONO
RIGHT
LEFT
MONITOR
MAINS OUT
LINE INPUTS
AUX SENDS
1
2
3
4
5
6
7
8
9
10
11
12
L
R
C
24 Mic, Line
and Insert
Analog
Inputs
12 Aux
Sends
8 Analog Line Inputs
Monitor
Outputs
CD/Tape B
Inputs
CD/Tape A
Inputs/Outputs
Talkback
Input
Main Outputs
R
M
L
1
2
3
4
5
6
7
8
R
L
Ch 4: Rear Panel Connectors
4.1.2 LINE Inputs 1–24
These 1/4-in TRS connectors accept a balanced or un-
balanced line level input signal from almost any source.
The
LINE
button on the console surface should be in
the down position when using these connectors. The
LINE inputs appear on the ANALOG bank.
A balanced line level signal must be wired as follows:
• Tip = Positive (+ or hot)
• Ring = Negative (-or cold)
• Sleeve = Shield or ground
An unbalanced signal must be wired as follows:
• Tip = Positive (+ or hot)
• Sleeve = Shield or ground
4.1.3 INSERTS 1–24
These 1/4-in TRS connectors provide each channel
an analog send and return point. Use the INSERT jacks
to connect external serial effects devices (i.e., com-
pressors, equalizers) to an individual channel. These
connectors can also be used as post gain control, unbal-
anced channel direct outputs.
The INSERT points are after the
GAIN
control, and
just before the ADC. The send (tip) is low-impedance
and the return (ring) is high-impedance, allowing con-
nection to virtually any device.
Cables for this type of insert send/return function
must be wired as follows:
• Tip = Send (output to effects device)
• Ring = Return (input from effects device)
• Sleeve = Common ground (connect shield to all
three sleeves)
4.1 Analog I/O
Figure 4-1 shows the rear panel analog I/O connectors
except for the Group/Matrix outputs, which are shown
in Figure 4-3.
4.1.1 MIC Inputs 1–24
The TT24 microphone preamp was based on our
extensive knowledge and experience with those used in
the Digital 8•Bus, VLZ Pro, and Onyx Series mixers, but
optimized for a digital mixer.
These female XLR connectors accept a balanced
microphone input from almost any type of microphone.
The
LINE
button on the channel strip should be in the
up
position when using these connectors. The MIC in-
puts appear on the ANALOG fader bank. Phantom power
(48 VDC) can be switched on for condenser mics setting
the
48V
button to the
down
position.
The XLR inputs are wired according to the AES stan-
dard:
• Pin 1 = Shield or ground
• Pin 2 = Positive (+ or hot)
• Pin 3 = Negative (- or cold)