+
-
Source
Device
+
-
GND
Source
Device
✗UNBALANCED
Ground loop
through screen
and chassis
✓BALANCED INPUT
+
-
Mixer
+
-
Mixer
If the u se of u nbalanced connections is u navoid able, you can m im im ise noise by follow ing these w iring gu id elines:
∙On IN PUTS, u nbalance at the sou rce and u se a tw in, screened cable as thou gh it w ere balanced . (see below )
∙On OUTPUTS, connect the signal to the +ve ou tp u t p in, and the grou nd of the ou tp u t d evice to
+
GND
Source
Device
+
-
GND
Mixer
INPUT
OUTPUT
+
-
Mixer
+
GND
Output
Device
Avoid ru nning au d io cables or p lacing au d io equ ip m ent, close to thyristor d im m er u nits or p ow er cables.
N oise im m u nity is im p roved significantly by the u se of low impedance sou rces, su ch as good qu ality p rofessional m icrop hones or the ou tp u ts from m ost m od ern au d io equ ip m ent. Avoid cheap er high im p ed ance m icrop hones, w hich m ay su ffer from interference over long cable ru ns, even w ith w
Pa ge 8
