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Hünegräben 26 

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 D-57392 Schmallenberg 

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 Tel.: +49 2972 97880 

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  E-mail: [email protected]

HEC AUX IN - DSP PRO

HELIX EXTENSION CARD

AUX INPUT MODULE FOR HELIX DSP PRO

Congratulations!

Dear Customer,

congratulations on your purchase of this high-qual 

ity HELIX 

 EXTENSION CARD. This module is produced by using the latest 

technology. We wish you many hours of enjoyment with your new 

HELIX product.

Yours,

AUDIOTEC FISCHER

General installation instructions for HELIX components

To prevent damage to the unit / module and possible injury, read this 

manual carefully and follow all installation instructions. This product 

has been checked for proper function prior to shipping and is guaran-

teed against manufacturing defects.

Before starting your installation, disconnect the battery’s nega-

tive terminal and all cables from the device to prevent damage 

to the unit / module, fire and / or risk of injury.

 For a proper perfor-

mance and to ensure full warranty coverage, we strongly recommend 

to get this product installed by an authorized HELIX dealer.

Install the HEC module only in the designated device and its 

specific slot. Using the HEC module in other devices or slots 

can result in damage of the HEC module, the processor, the 

head unit / radio or other connected devices!

Technical data

AUX input:

3.5 mm jack

Input Sensitivity:

200 mV

Input impedance:

1 kOhm

A/D converter:

96 kHz / 24 Bit 

Digital optical output:

SPDIF with 96 kHz / 24 Bit

Mounting information

1.  First disconnect all cables from the device.

2.  Dismantle the side panel by removing the marked screws with a 

Phillips screwdriver: 

3.  Pull out the bottom plate.

4.  Remove the nut from the AUX socket of the HEC module.

5.  Insert the HEC module into the marked slot: 

6.  Make sure that the HEC module is installed properly and all pins 

are fully inserted into the socket:

7. 

Reinsert  the  bottom  plate  and  fix  the  new  side  panel  which  is 

delivered with the HEC module with the Phillips screws. 

8.  Put the nut on the AUX socket and bolt it to the side panel.  

Caution:

 Do not overtighten the nut as this may damage the 

socket!

9.  Reconnect all cables to the device.

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