zapco DAII-SL, Owner'S Manual

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Wiring Guidelines
As a SymbiLink™ Balanced Signal System component, your SLX-4
does not need any external power wiring when used in conjunction with a
ZAPCO SymbiLink™ amplifier. Simply connect the SLX-4 to a SymbiLink™
amplifier using a SymbiLink™ cable. The amplifier will send the necessary
power through the cable. This connection method eliminates any concern of
ground looping problems associated with multiple power supplies
throughout the vehicle. The fully balanced architecture used in all ZAPCO
SymbiLink™ components reduces distortion and achieves the ultimate in
noise rejection.
The SLX-4 can be used in systems where a SymbiLink™ amplifier
is not present. In these circumstances, a PSI-SL power supply is necessary
to power this and any other SymbiLink™ components. A PSI-SL socket is
located on the back panel of this unit for this situation. Follow the directions
included with the power supply, use the cable it is supplied with and connect
it to this socket.
Take care to avoid making any sharp bends in the SymbiLink™
cable near the connector. This can cause intermittent or broken connections
in the cables causing erratic operation. If you experience any problems,
substitute cables individually with cables that are known to be good before
suspecting the component itself.
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