ART Pro Audio XL231 - Dual 31-Band, 1/3 Octave, Graphic EQ - Manual (Page 11)

ART XL 231 Dual 31 Band, 1/3 Octave Extended, Long Throw, Professional Equalizer
11
INPUT/OUTPUT CONNECTORS
Although the XL 231 may be used with unbalanced connections, for optimum
performance use balanced connections. Balanced connections help eliminate external
sources of electrical noise.
Only one of the 3 inputs should be used per channel. Any combination of output
connectors may be used.
¼” TRS Phone
The TRS (Tip Ring Sleeve) ¼” phone connections may be used balanced or
unbalanced. When balanced, the tip is High (+), the ring is Low (-) and the sleeve is
ground. To use unbalanced use a mono ¼” phone cable, this will automatically ground
the ring to the sleeve.
The TRS ¼” Phone connector is balanced and wired as:
Tip = High (+)
Ring = Low (-)
Sleeve = Ground.
XLR
The XLR input connector is balanced and wired as:
Pin 2=High (+)
Pin 3=Low (-)
Pin 1=Ground.
EURO BLOCK
The detachable Euroblock connections are wired as shown on the rear panel.