Instruction Manual

2.4.2 Unbalanced Input Connections
When using an unbalanced input source and connector, a jumper must
be added between the negative (-) terminals and the ground terminals.
Once this has been done, the unbalanced source can be connected to
the positive (+) and ground terminals. Please refer to the manual of
your input source in case it does not follow the standard pin-out. For
your convenience, pre-wired connectors are available for purchase, see
the next page for details.
NOTE: A jumper is required for connecting an unbalanced
input.
NOTE: The CVA Series of ampliers do not accept stereo
inputs. Either one side must be selected from the stereo
source or an overload-protected Y-cable must be used to
sum them to mono. It is highly recommended that you
purchase the pre-wired connectors mentioned on the next
page. Damage to source equipment can result from the
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 Series amplier to an unbalanced
source. The summing adapters will properly sum a stereo source for
use with the mono input on the rear of the amplier 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 ampliers
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 ow 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, at-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