ART Pro Audio HD-131 - Single 31 Band Graphic Equalizer - Manual (Page 10)

10
11. INPUT/OUTPUT CONNECTORS
1/4 TRS
The TRS (Tip Ring Sleeve) connector is balanced and wired as Tip = High (+), Ring = Low (-), and
Sleeve = Ground.
XLR
The XLR input connector is balanced and wired as Pin 2=High (+), Pin 3=Low (-), and Pin 1=Ground.
EURO BLOCK
HD131 HD 215, HD231
CAUTION: Only one input option should be chosen for audio connection at the same time.
FOR BALANCED CONNECTIONS
Wire the connectors as follows:
Phone Jack
Connection
tip = High (+)
ring = Low (-)
sleeve = ground
FOR UNBALANCED CONNECTIONS
Use 1/4 inch tip-ring-sleeve or mono phone plug connectors wired as follows:
Phone Jack
Connection
tip = High (+)
ring = no connection
sleeve = ground