10
11
Pre-wired unbalanced connectors are available for purchase from Stew-
art Audio. These will allow for a quicker installation with less room for
error when connecting the CVA 100-2 amplifier to an unbalanced
source. The summing adapters will properly sum a stereo source for
use with the mono input on the rear of the amplifier without causing
sound cancellation. Part numbers are found below the diagrams.
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 g chart to choose the ap-
propriate 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
500-1000 ft.
20 AWG
Over 1000ft
18 AWG
ADPT-RCA
Mono
Female RCA
ADPT-SUMRCA
Stereo
Female RCA
ADPT-SUM35
Stereo
Female 3.5mm
2.5.1 Constant Voltage Wiring Example
The diagram below is a typical wiring setup for two speakers with out-
board step-down transformers wired in parallel to one of the 70V out-
puts on a CVA100-2 amplifier.
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