Appendix B: Connections - Mackie ProFX12 Owner's Manual

Appendix B: Connections

"XLR" Connectors
all microphone inputs, with pin 1 wired to the grounded
(earthed) shield, pin 2 wired to the "high" ("hot" or
positive polarity) side of the audio signal and pin 3
wired to the "low" ("cold" or negative polarity) side of
the signal. See Figure A. This is all totally aboveboard
and in full accord with the hallowed standards dictated
by the AES (Audio Engineering Society).
Use a male "XLR"-type connector, usually found on the
nether end of what is called a "mic cable," to connect to
a female XLR jack.
Figure A: XLR Connectors
⁄ " TRS Phone Plugs and Jacks
1
4
"TRS" stands for Tip-Ring-Sleeve, the three
phone jack or plug. See Figure B.
RING
TIP
Figure B: 1⁄4" TRS Plugs
TRS jacks and plugs are used in several different
applications:
microphones and stereo line connections.
is connected tip to left, ring to right and sleeve
directly accept 1-plug-type stereo micro phones.
They must be separated into a left cord and a
right cord, which are plugged into the two mic
preamps.
2
SHIELD
HOT
1
COLD 3
SHIELD
1
3
COLD
2
HOT
SHIELD
1
3
COLD
2
HOT
SLEEVE SLEEVE RING TIP
RING
TIP
SLEEVE
is connected tip to signal high (hot), ring to
signal low (cold), and sleeve to ground (earth).
or plug is connected tip to signal send (output
from mixer), ring to signal return (input back
into mixer), and sleeve to ground (earth).
⁄ " TS Phone Plugs and Jacks
1
4
"TS" stands for Tip-Sleeve, the two connections
See Figure C.
TIP
Figure C: TS Plug
TS jacks and plugs are used in many different
applications, always unbalanced. The tip is connected to
the audio signal and the sleeve to ground (earth). Some
examples:
RCA Plugs and Jacks
RCA-type plugs (also known as phono plugs) and
jacks are often used in home stereo and video
equipment and in many other applications (Figure D).
TS phone plug or jack (see Figure C). Connect the
signal to the center post and the ground (earth) or
shield to the surrounding "basket."
SLEEVE
Figure D: RCA Plug
SLEEVE SLEEVE TIP
TIP
SLEEVE
TIP SLEEVE TIP
Owner's Manual
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