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Operating Manual - MQX-2310, MQX-1310, and MQX-2150 Graphic Equalizer
6.3 Grounding
The terminal strip has two ground connections,
one for input ground and one for chassis ground. The
equalizer is shipped with a jumper strap connecting these
two grounds. Normally, this strap should be left in place
so the chassis and input grounds are connected. In a rack-
mount installation where the equalizer is connected to
other equipment with unbalanced inputs or outputs and
the rack itself provides a good electrical connection be-
tween the equalizer chassis and the other equipment, it
may be desirable to remove this strap to isolate the input
ground from chassis ground and avoid a ground loop.
Unless you have such an installation and have a hum prob-
lem you can’t solve by other means (ie: using balanced
input and output connections), leave the ground jumper
strap in place.
(-)(+)
2
3
1
Balanced
Input
Channel Two
Output
hannel One
Output
(-)(+)
2
3
1
Input is 20K active balanced.
Output may be wired balanced
or unbalanced. Maximum in/out
level is +22dBu.
Ω
(-)
(+)(-) (+)
Output
Input
Ground
Chassis
Ground
Channel Two
(-)
(+)(-) (+)
Output
Input
Ground
Chassis
Ground
Channel One