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5. Connection to power supply
Make sure to disconnect the battery before
installing the HELIX G FIVE!
Connect the +12 V power cable to the positive
terminal of the battery. The positive wire from
the battery to the amplifier power terminals
needs to have an inline fuse at a distance of
less than 12 inches (30 cm) from the battery.
The value of the fuse is calculated from the
maximum total current input of the whole car
audio system (G FIVE = max. 120 A RMS at
12 V power supply). If your power wires are
short (less than 1 m / 40”) then a wire gauge of
16 mm² / AWG 6 will be sufficient. In all other
cases we strongly recommend gauges of 25 -
35 mm² / AWG 4 – 2!
The ground cable (same gauge as the +12 V
wire) should be connected to a common ground
reference point (this is located where the
negative terminal of the battery is grounded
to the metal body of the vehicle), or to a pre-
pared metal location on the vehicle chassis,
i.e. an area which has been cleaned of all paint
residues.
6. Connecting the remote input
The remote input (
REM
) has to be connected to
the radio remote output if the amplifiers pre-am
-
plifier inputs are used as signal inputs. We do
not recommend controlling the remote input via
the ignition switch to avoid pop noise during
turn on/off.
If the
Highlevel Input
is used this input does not
need to be connected as long as the car radio
has BTL output stages.
Installation
