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Hünegräben 26 · 57392 Schmallenberg · Germany · Tel.: +49 2972 97880 ·  E-mail: contact@audiotec-fischer.com

AUX INPUT MODULE FOR HELIX / MATCH DEVICES

Congratulations!

Dear Customer,

congratulations on your purchase of this high-qual ity HELIX / MATCH  

EXTENSION CARD. This module is produced by using the latest 

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

Audiotec Fischer product.

Yours,

AUDIOTEC FISCHER

General installation instructions for HELIX / MATCH com-

ponents

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 / MATCH dealer.

Install the Extension Card only in the designated device and its 

specific slot. Using the module in other devices or slots can re-

sult in damage of the Extension Card, the device, 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 or 48 kHz / 24 Bit 

depending on sampling rate of 

the device

Digital optical output:

SPDIF with either 96 kHz / 24 Bit 

or 48 kHz / 24 Bit depending on 

sampling rate of the device

Mounting information

1.  First disconnect all cables from the device.

2.  Depending on the device there are two possibilities to get access 

to the Extension Card slot.

1. Bottom plate is bolted: untighten the screws of the bottom plate 

and remove it. Afterwards dismantle the appropriate side panel by 

removing its screws.

2. Bottom plate is not bolted: dismantle the appropriate side panel 

by removing its screws and pull out the bottom plate sideways. 

3.  Remove the nut from the AUX socket of the Extension Card.

4.  Insert the Extension Card into the specific slot of the device which 

is marked in the following picture (the picture representatively dis-

plays the Extension Card slot of the HELIX DSP.2). The exact 

position of the slot can be found in the manual of each device:

5.  Make sure that the module is installed properly and all pins are 

fully inserted into the socket:

6.  If the bottom plate was bolted, fix the new side panel which is 

delivered with the Extension Card. Afterwards reinsert the bottom 

plate and fix it, too. Otherwise reinsert the bottom plate and fix the 

new side panel with the screws. 

7.  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!

8.  Reconnect all cables to the device.

EXTENSION CARD

HEC / MEC AUX IN

 

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