HELIX DSP PRO Manual page 18

Connection of HELIX DSP PRO to the head unit
(radio):
Caution: Carrying out the following steps will re-
quire special tools and technical knowledge. In or-
tions and follow all instructions in this manual (see
page 13).
It is recommended that this unit will be installed by
an authorized HELIX dealer.
Use the correct cable (RCA / cinch cable) to con-
cinch outputs of your car radio.
Each input can be assigned to any output using
the DSP PC-Tool software. The automatic turn-
on circuit does not work when using the pre-
PRO.
Important: It is strictly forbidden to use the
2. Connecting the highlevel speaker inputs
nected directly to the loudspeaker outputs of
an OEM or aftermarket radio using appropriate
cables (loudspeaker cables with 1mm² / AWG18
max.). It is not mandatory to use all speaker in-
puts.
Make sure that the polarity is correct. If one or
may affect the performance of the processor. If
this input is used the remote input has not to be
used as the processor will automatically turn on
four Philipps head screws of the side pan el (in-
put side) and pull out the bottom plate. Now you
The assignment of the trim pots to the respec-
18
17.
Please note: The settings of the trim potentio-
G and H can be changed by inserting the other
PRO.
Follow the subsequent steps if you like to per-
your audio source by using the internal trim po-
tentiometers:
the processor during this setup.
3. The adjustment will be easier when you
connect and adjust one input channel after
the other.
- 4. If the Clipping LED already lights up, you
goes out.
If the pot is already set to right stop position
then it will be necessary to change the sen-
LED lights up. Now turn the potentiometer
clockwise until the Clipping LED goes out
again.
6. Repeat this process for each channel you
are using.
4. Connecting a digital signal source
xial digital output you can connect it to the pro-
cessor using the appropriate input.
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