I-Sotec i-soamp-4 Quick Manual page 10

can connect the black „Minus" cable. Be
sure to provide good electrical contact!
Connect the other end of this cable to
the black (-) clamp on the i-soamp-4 cable
harness. The plug contacts needed for this
comes as accessories. Keep all negative
/Ground cables in the system as shor t as
possible and guide them through the same
point in order to prevent static noise in-
duction.
The Grounding point must have perfect
electrical contact to the chassis and the
battery's negative terminal. Make sure not
to use chassis par ts that may only have
been glued to the vehicle chassis instead
of being welded or screwed!
The next step is connecting the plus power
cable from the positive terminal of the
battery via an appropriate fuse to the
yellow (+) wire on the i-soamp-4 cable
harness. The plug contacts needed for this
come as accessories. Take care when instal-
ling this cable that it is routed without any
kinks and avoid contact with sharp-edged
metal sheeting parts. Use rubber grommets.
CAUTION
A main fuse MUST be inser ted into the
plus cable at a maximum distance of 12"
(=30 cm) from the battery's plus terminal
(insurance regulations!) that is triggered in
case of mechanical damage to the cable
due to chassis contact in order to prevent
a fi re in the cable! Its capacity must be
adapted to the entire system's power in-
take, the minimum is 60 A. The fuse in the
i-soamp-4 cable harness only protects the
amplifi er itself, not the battery or the car!
Both power cables (+ and Ground) must
have suffi cient diameter. i-sotec recommends
a minimum diameter of 6 mm for the
i-soamp-4.
With a thinner cable the output power
indicated cannot be attained, and to some
extent the internal protection will be trig-
gered by under-voltage, switching the am-
plifi er off periodically. Cables that are too
weak can in addition heat up considerably!
After properly connecting the power cable
the battery can be reconnected.