24
Initial start-up and functions
7
Power Input
This input is used for connecting the signal pro-
cessor to the power supply of the vehicle and for
remote in / out. If the highlevel loudspeaker inputs
are used the remote input can be left unconnected.
The remote output is used for turning on / off ampli
-
fiers that are connected to the
Line Outputs
of the
HELIX DSP ULTRA. Connect this remote output to
the remote inputs of your amplifier/s. This is essen
-
tial to avoid any interfering signals.
The remote output is activated automatically as
soon as the booting process of the DSP is complet-
ed. Additionally this output will be turned off during
the “Power Save Mode” or a software update pro
-
cess.
Attention:
Solely use the pluggable screw-terminal
which is included in delivery to connect the HELIX
DSP ULTRA to the power supply!
Important: Never use a different signal than the
remote output of the DSP to activate connected
amplifiers!
8
Control pushbutton
The DSP ULTRA provides 10 internal memory lo
-
cations for sound setups. The
Control pushbutton
allows the user to switch between two memory po-
sitions. These can be defined in the DSP PC-Tool.
Pressing the button for five seconds completely
erases the internal memory. This is indicated by a
continuous red glowing and constant green flashing
of the
Status LED
.
Note:
The memory locations one and two are de-
fined ex works. To manually switch between the
setups the button has to be pressed and held for
one second. Switching is indicated by a single red
flash of the
Status LED
. To switch between all inter-
nal memory locations, the optionally available DI
-
RECTOR display remote control or the HELIX WIFI
CONTROL is recommended.
Attention:
After erasing the setups from memory
the HELIX DSP ULTRA will not reproduce any au-
dio output.
9
Status LED
The
Status LED
indicates the operating mode of the
signal processor and of its memory.
Green:
DSP is ready for operation.
Orange:
Power Save Mode is active.
Red:
Protection Mode is active. This may have
different root causes. The HELIX DSP ULTRA is
equipped with protection circuits against over- and
undervoltage as well as overheating. Please check
for connecting failures such as short-circuits or oth-
er wrong connections.
If the DSP is overheated the internal temperature
protection switches off the remote and signal output
until it reaches a safe temperature level again.
Red
/
green
slow flashing:
No operating software
installed. Connect the signal processor to the
DSP PC-Tool software and confirm the automat
-
ic update of the operating system. You will find
the latest version of the DSP PC-Tool software at
www.audiotec-fischer.com.
Red
/
green
fast flashing:
The currently selected
Sound Setup memory is empty. A new setup has to
be loaded via the DSP PC-Tool software or switch
to a memory position with existing sound setup.
10
USB input
Connect your personal computer to the DSP ULTRA
using the provided USB cable. The required PC
software to configure this signal processor can be
downloaded from the Audiotec Fischer website
www.audiotec-fischer.com
.
Please note:
It is not possible to connect any USB
storage devices.
11
Control Input
This multi-functional input is designed for HELIX
DSP ULTRA accessory products like a remote
control which allows to adjust several features of
the signal processor. Depending on the type of
remote control, at first its functionality has to be
defined in the “ Device Configuration Menu” of the
DSP PC-Tool software.
12
Line Output
12-channel pre-amplifier output for connecting
po wer amplifiers. The output voltage is 8 Volts
max. Please make sure that you always turn on /
off external amplifiers using the remote output of
the signal processors
Power Input
. Never direct
-
ly control the external amps by a signal from the
ignition switch of your car! Additionally this output
will be turned off when the “Power Save Mode” of
the signal processor is active. The outputs can be
assigned to any of the inputs as desired using the
DSP PC-Tool software.
