HELIX V EIGHTEEN DSP Bedienungsanleitung Seite 25

the amplifier.
To deactivate the automatic turn-on feature
you have to open the device as described in
point 1 and change the position of the "Auto
Remote" switch (see marking in the following
picture).
On: Activation via highlevel speaker input is
enabled (by default).
Off: Activation via highlevel speaker input is
disabled.
Note: If the automatic turn-on function is de-
activated it is mandatory to use the remote
input terminal to power up the amplifier! The
highlevel signal will be ignored in this case.
6. Connection to power supply & remote
ATTENTION: Make sure to disconnect
the battery before installing the HELIX
V EIGHTEEN DSP!
Make sure of correct polarity.
+ 12V: Connector for the positive cable. Con-
nect the +12 V power cable to the positive ter-
minal of the battery. The positive wire from the
battery to the amplifiers power terminal needs
to have an inline fuse at a distance of no more
than 12 inches (30 cm) from the battery. The
value of the fuse is calculated from the max-
imum total current input of the whole car au-
dio system (V EIGHTEEN DSP = max. 108 A
RMS). 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!
GND: Connector for the ground cable. The
ground wire should be connected to a com-
mon 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 prepared metal location on the vehicle
chassis, i.e., an area cleaned of all paint resi-
dues. The cable should have the same gauge
as the +12 V wire. Inadequate grounding
causes audible interference and malfunctions.
REM: The remote input is used to switch on
the V EIGHTEEN DSP if the pre-amplifier in-
puts or digital input are / is used. Additional-
ly, this input must be assigned, if the signal
source which is connected to the highlevel in-
puts (High level In) is not activating the "auto-
matic turn-on" function or if the amplifier shall
only be activated / deactivated via a remote
signal. The remote wire should be connect-
ed to the remote output / automatic antenna
(aerial positive) output of the head unit / car
radio. This is only activated if the head unit is
switched on. Thus the amplifier is switched on
and off together with the head unit.
We do not recommend controlling the remote
input via the ignition switch to avoid pop noise
during turn on / off.
Note: This input does not need to be assigned
if the highlevel input is used. To deactivate the
"automatic turn-on" function read the descrip-
tion on page 24 in point 5 "Configuration of the
remote input".
7. Connecting the PC & first start-up
The USB input enables the connection of the
V EIGHTEEN DSP to a personal computer
and its free configuration with our DSP
PC-Tool software using the provided USB
cable.
Please note: It is not possible to connect any
USB storage devices.
Prior to connecting the amplifier to your PC
visit our website and download the latest ver-
sion of the DSP PC-Tool software.
We strongly recommend to carefully read the
DSP PC-Tool knowledge base before using
the software for the first time in order to avoid
any complications and failures.
Important: Make sure that the amplifier is not
connected to your computer before the soft-
ware and USB driver are installed!
In the following the most important steps how
to connect and the first start-up are described:
1. Download the latest version of the DSP
PC-Tool software (available on our web-
en
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