Connections - Mackie SRM 150 User Manual

CONNECTIONS

XLR Connectors
Inputs 1- accept -pin male XLR connectors on the
Neutrik combo inputs. They are wired as follows,
according to standards specified by the AES (Audio
Engineering Society).
XLR Balanced Wiring:
Pin 1 = Shield
Pin  = Hot (+)
Pin  = Cold (–)
1/4" TRS Phone Plugs and Jacks
The Neutrik combo inputs also accept 1/" TRS connec-
tors. "TRS" stands for Tip-Ring-Sleeve, the three connec-
tion points available on a stereo 1/" or balanced phone
jack or plug. TRS jacks and plugs are used for balanced
signals and stereo headphones.
Balanced Mono
1/" TRS Balanced Mono Wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)
Stereo Headphones
1/" TRS Stereo Unbalanced Wiring:
Sleeve = Shield
Tip = Left
Ring = Right
2
SHIELD
HOT
1
3
COLD
1
SHIELD
3
COLD 2
HOT
SHIELD
1
3 COLD
2
HOT
RING SLEEVE SLEEVE RING TIP
TIP
RING
TIP
SLEEVE
RING SLEEVE SLEEVE RING TIP
TIP
RING
TIP
SLEEVE
1/4" TS Phone Plugs and Jacks
"TS" stands for Tip-Sleeve, the two connection points
available on a mono 1/" phone jack or plug. They are
used for unbalanced line-level signals and the high-
impedance instrument input on Channel 1.
1/" TS Unbalanced Wiring:
Sleeve = Shield
Tip = Hot (+)
RCA Plugs and Jacks
RCA-type plugs (also known as phono plugs) and jacks
are often used in home stereo and video equipment, and
to make S/PDIF connections on consumer digital audio
devices. They are unbalanced and electrically equiva-
lent to a 1/" TS phone plug.
RCA Unbalanced Wiring:
Sleeve = Shield
Tip = Hot (+)
SLEEVE SLEEVE TIP
TIP
TIP
SLEEVE
TIP
SLEEVE TIP SLEEVE
1