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Hardware configuration
6. Increase the input sensitivity using the gain
control of the DSP PC-Tool Software until
the Clipping LED / Clipping Indicator lights
up. Now turn the control back until the Clip-
ping LED / indicator turns off again.
10. Configuration of the DSP
The general DSP settings should be con-
ducted with the DSP PC-Tool software be-
fore using the signal processor for the first
time.
Now
you
DSP PRO MK3 with our intuitive DSP PC-
Tool software. Useful hints for the correct set-
ting can be found in our knowledge base at
www.audiotec-fischer.com.
Caution: We highly recommend to set the
volume of your car radio to minimum position
during first start-up. Additionally no devices
should be connected to the signal processor.
Especially if the DSP PRO MK3 will be used
in fully active applications, a wrong setup can
destroy your speakers right away.
Additional functions
1. Clipping LED
The Clipping LED indicates if one of the Line
or Highlevel Inputs is overdriven.
On (red): One of the analog signal inputs is
overdriven. Reduce the input sen-
sitivity using the four internal slide
switches until the LED goes out.
How to reduce the input sensitiv-
ity is described on page 23 under
point 9.
Off:
The input sensitivity is optimally
adapted to the signal source.
Note: The LED has no function when using
one of the digital inputs.
24
are
able
to
configure
11. Analyzing the input signal
Check the input signal for factory-set equal-
izing and all-pass filters using the Input
Signal Analyzer (ISA) of the DSP PC-Tool
software. Information about the ISA can be
found in the extensive Knowledge Base on
our
website
Caution: We highly recommend to set the
volume of your car radio to minimum position
during first start-up. Additionally no devices
should be connected to the signal proces-
sor until general settings in the DSP PC-Tool
software have been made. Especially if the
DSP PRO MK3 will be used in fully active
applications, a wrong setup can destroy your
speakers right away.
your
12. Connecting the Line Outputs
The ten pre-amplifier outputs (Line Output)
can now be connected to the pre-amplifier /
lowlevel / RCA inputs of the external ampli-
fiers using appropriate cables (RCA / Cinch
cables).
13. Sound tuning
Now you can create your sound setup.
Information about sound tuning can be
found in our extensive knowledge base at
audiotec-fischer.com or contact your local
HELIX dealer.
2. 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 activated.
Red:
Protection Mode is active. This may
have different root causes. The HELIX
DSP PRO MK3 is equipped with protection
circuits against over- and undervoltage as
well as overheating. Please check for con-
necting failures such as short-circuits or other
wrong connections. If the DSP is overheated
the internal temperature protection switches
off the remote and signal output until it reach-
es a safe temperature level again.
www.audiotec-fischer.com.
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