MACKIE QUAD EQ - Manual (Page 19)

18
QUAD EQ
Quad EQ
19
Owner’s Manual
Owner’
s Manual
Appendix B: Connections
XLR Connectors
The Quad EQ inputs accept 3-pin male XLR connec-
tors. These are wired as follows, according to standards
specified by the AES (Audio Engineering Society).
2
2
3 1
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
SHIELD
COLD
HOT
3
2
1
XLR Balanced Wiring:
Pin 1 = Shield
Pin 2 = Hot (+)
Pin 3 = Cold (–)
1/4" TRS Phone Plugs and Jacks
“TRS” stands for Tip-Ring-Sleeve, the three connection
points available on a stereo 1/4" or balanced phone
jack or plug. TRS jacks and plugs are used for balanced
signals and stereo headphones:
Balanced Mono
SLEEVE
TIP SLEEVE
TIP
RING
RING
TIP
SLEEVE RING
1/4" TRS Balanced Mono Wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)
1/4" TS Phone Plugs and Jacks
“TS” stands for Tip-Sleeve, the two connection points
available on a mono 1/4" phone jack or plug. They are
used for unbalanced signals.
SLEEVE
TIP
TIP SLEEVE
TIP
SLEEVE
1/4" TS Unbalanced Wiring:
Sleeve = Shield
Tip = Hot (+)
TRS Send/Receive Inserts
Inserts are three-conductor 1/4" TRS phone plugs at
one end, and two TS phone plugs the other. They are
unbalanced, but have both the mixer output (send) and
mixer input (return) signals in one connector. If your
mixer allows these connections, this is a very handy way
of connecting your Quad EQ. (The hookup digrams show
some examples.)
The sleeve is the common ground (earth) for both sig-
nals. The send from the mixer to the input of the Quad
EQ is carried on the tip, and the return from the output
of the Quad EQ to the mixer is on the ring.
“tip”
this plug connects to one of the
mixer’s Channel Insert jacks.
“ring”
tip
ring
sleeve
SEND to processor
RETURN from processor
(TRS plug)