Stewart Audio CVA50-1 Priority PA - Manual (Page 7)

12
2.4.3 Stereo 3.5mm
The second input channel is a stereo RCA jack which is then summed
to mono before the final output. Refer to the diagram below for wiring
directions.
2.4.4 25V PA Euro Block
The third input channel is a Euro Block connector which can be wired
to any unbalanced input. Should you be wiring up a stereo source, use
both the left and right pins of the connector. A mono source will only
require the use of the ground and left pins.
+/Left
-/Right
Ground
(Shield)
+/Left
-/Right
Ground
(Shield)
13
2.5 Output Connections
Because of the differences in the way that constant-voltage amplifiers
work as opposed to a typical 8-ohm setup, the wiring procedure and
the gauge of wire used is very different.
Constant voltage systems and speakers use a smaller current flow than
the typical 8ohm systems and thus can use a higher gauge (thinner
diameter) wire. Please refer to the following chart to choose the appro-
priate wire gauge for your installation.
Speaker leads connect by means of removable Euro Block connectors
supplied with the unit. Strip speaker leads 1/4” and insert leads into
connector observing proper polarity. With a small, flat-blade screwdriv-
er, tighten the screw until the leads are held securely in place. Inspect
for possible shorts or broken wires.
Distance Wire Gauge
Up to 500ft 22 AWG
500 to 1000 ft. 20 AWG
Over 1000ft 18 AWG