Mackie ProFX22 - Appendix B: Connector Guide; XLR, TS, and RCA Connector Details

26 ProFX16 and ProFX22
XLR Connectors
Mackiemixersuse3-pinfemaleXLRconnectorson
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.
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.
1
⁄4" TRS Phone Plugs and Jacks
TRS stands for Tip-Ring-Sleeve, the three connections
availableonastereo1/4"orbalancedphonejackor
plug. See Figure B.
TRS jacks and plugs are used in several different
applications:
• Balancedmonocircuits.Whenwiredasa
balancedconnector,a1⁄4"TRSjackorplug
is connected tip to signal high (hot), ring to
signal low (cold), and sleeve to ground (earth).
• Stereoheadphones,andrarely,stereo
microphones and stereo line connections.
Whenwiredforstereo,a1⁄4"TRSjackorplugis
connected tip to left, ring to right and sleeve to
ground(earth).Mackiemixersdonotdirectly
accept 1-plug-type stereo micro phones. They
must be separated into a left cord and a right
cord, which are plugged into two mic preamps.
Appendix B: Connections
• Unbalancedsend/returncircuits.Whenwired
assend/return“Y”connector,a1⁄4"TRSjack
or plug is connected tip to signal send (output
from mixer), ring to signal return (input back
into mixer), and sleeve to ground (earth).
1
⁄4" TS Phone Plugs and Jacks
TS stands for Tip-Sleeve, the two connections
availableonamono1⁄4"phonejackorplug.See
Figure C.
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:
• Unbalancedmicrophones
• Electricguitarsandelectronicinstruments
• Unbalancedline-levelconnections
• Speakerconnections
Don’t use guitar cords for speaker cables!
They’re not designed to handle speaker-level
signals and could overheat.
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).
Theyareunbalancedandelectricallyidenticaltoa1⁄4"
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.”
2
2
3
1
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
SHIELD
COLD
HOT
3
2
1
Figure A: XLR Connectors
SLEEVE
TIP
TIPSLEEVE
TIP
SLEEVE
SLEEVE
TIPSLEEVE
TIP
RING
RING
TIP
SLEEVERING
Figure B: TRS Plug
Figure E: Does not appear in this owner's manual, due
to a contractual obligation, but performs nightly at the
downtown Woodinville Cocoa Rooms and Tea Bar
SLEEVE
TIP
TIPSLEEVE
TIP
SLEEVE
SLEEVE
TIPSLEEVE
TIP
RING
RING
TIP
SLEEVERING
Figure C: TS Plug
TIPSLEEVETIPSLEEVE
Figure D: RCA Plug