Connectors and control units
Line Input
1
RCA inputs for connecting pre-amplifier
signals.
Coax Input
2
Electrical input for digital stereo signals
( SPDIF format).
.
Optical Input
3
Optical input for digital stereo signals (SPDIF
format).
Ground lift switch
6
Can be used to define the connection
between the power ground and signal ground
of the inputs and outputs.
Control pushbutton
7
Use this button to either switch between the
setups or initiate a reset of the device.
Status LED
8
This LED indicates the operating mode of the
DSP and of its memory.
16
1
2
6
7
8
9
3
4
Highlevel Input
4
Highlevel speaker inputs for connecting a
factory radio or an aftermarket radio without
lowlevel line outputs.
Power Input
5
Connector for the DC power supply with an
additional remote in- and output. The remote
output has to be used to switch on external
amplifiers.
10
USB input
9
Connects the HELIX DSP.3S to your PC.
SCP (Smart Control Port)
10
Multifunction interface for e.g. an optional
remote control or other HELIX accessory.
Line Output
11
Line outputs for connecting amplifiers. Make
sure that the remote output is used to turn on
these devices.
5
11