HELIX DSP PRO MK3 Bedienungsanleitung Seite 23

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 in point 6 "Configuration of the remote
input".
Remote out: The remote output is used for
turning on / off amplifiers that are connected to
the Line Outputs of the HELIX DSP PRO MK3.
Therefore connect the remote output of the
DSP to the remote inputs of your amplifiers
to switch them on and off via the DSP with-
out interfering signals. The remote output is
activated automatically as soon as the booting
process of the DSP is completed. Additionally
this output will be turned off during the "Power
Save Mode" or a software update process.
Important: Never use a different signal
than the remote output of the DSP to acti-
vate connected amplifiers!
8. Connecting the PC & first start-up
The USB input enables the connection of the
DSP PRO MK3 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 signal processor to
your PC visit our website and download the
latest version 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 signal proces-
sor is not connected to your computer before
the software 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 website
www.audiotec-fischer.com) and install it on
your computer.
2. Connect the signal processor to your com-
puter using the USB cable that is included in
delivery. If you have to bridge longer distanc-
es please use an active USB extension cable
with integrated repeater.
3. First turn on the signal processor and then
start the software. The operating software will
be updated automatically to the latest version
if it is not up-to-date.
9. Fine adjustment of the input sensitivity
ATTENTION: In order to avoid damage to
the signal processor, it is mandatory to
preset the input sensitivity as described
on page 21 in point 2.
The DSP PC-Tool allows to fine tune the input
sensitivity across all channels in 1 dB steps,
up to a maximum of +6 dB.
Note: Don't connect any amplifiers to the out-
puts of the signal processor during this setup.
The Clipping LED (see page 19, point 3) of the
DSP PRO MK3 or the Clipping Indicator of the
DSP PC-Tool serves as monitoring tool.
For fine adjustment please proceed as fol-
lows:
1. Turn on the signal processor.
2. Start the DSP PC-Tool software.
3. The fine adjustment of the input sensitivity
can be found in the "Signal Management"
tab of the DCM menu under the item "Main
Input → Input Gain".
4. Adjust the volume of your radio to approx.
90 % of the max. volume and playback
an appropriate test tone, e.g. pink noise
(0 dB).
5. If the Clipping LED (see page 19, point 3)
or the Clipping Indicator (see marking in
the following picture) already lights up red,
the presetting of the input sensitivity is not
correct. In this case, first reduce it using
the internal slide switches as described on
page 21, point 2. As soon as the Clipping
LED / Clipping Indicator turns off, continue
with the following point 6.
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