Dear Customer,
congratulations on your purchase of this high-quality
HELIX amplifier, made in Germany. This new Helix
amplifiers highlights best quality, excellent manufactu-
ring and state-of-the-art technology. They are the opti-
mum completion of HELIX series by AUDIOTEC
FISCHER.
To find out how Helix amplifiers work best for you, read
this manual carefully and follow the instructions for
installation.
We guarantee that this product has been checked for pro-
per functioning before shipping.
We wish you a lot of fun with your new HELIX amplifier.
Yours
AUDIOTEC FISCHER Team
General installation instructions for HELIX amplifiers
Before you start installation, disconnect the car battery
at the minus pole. We would urge you to have the instal-
lation work carried out by a specialist as verification of
correct installation and connection of the unit is a prere-
quisite for warranty cover of the HELIX amplifier.
Install your amplifier at a dry location where there is
sufficient air circulation to ensure adequate cooling of
the equipment. For safety reasons, the amplifier must be
secured in a professional manner. This is performed by
means of four fixing screws screwed into a mounting
surface offering sufficient retention and stability.
Before drilling the holes for the screws, carefully exami-
ne the area around the installation position and make
sure that there are no electrical cables or components,
hydraulic brake lines or any part of the petrol tank loca-
ted behind the mounting surface - otherwise these could
be damaged. You should be aware of the fact that such
components may also be concealed in the double-skin
trim panels/mouldings.
General instruction for connecting the amplifiers
The HELIX amplifiers may only be installed in motor
vehicles which have a 12-volt minus pole connected to
the chassis ground. Any other system could cause
damage to the amplifier and the electrical system of the
vehicle.
The plus cable from the battery for the complete system
should be provided with a main fuse at a distance of
max. 30 cm from the battery. The value of the fuse is cal-
culated from the maximum total current input of the car
audio system.
Install the cabling in a manner which precludes any dan-
ger of the leads being exposed to shear, crushing or
rupture forces. If there are sharp edges in the vicinity
(e.g. holes in the bodywork) all cables must be cushio-
ned and protected to prevent fraying.
Never lay the power supply cables adjacent to leads and
lines connecting other vehicle equipment (fan motors,
fire detection modules, gas lines etc.).
In order to ensure safe installation, use only high-quality
connections and materials. Ask your dealer for HELIX
accessories.
HELIX Cross Cards (HCCs)
HCC1 is inserted as standard in every HELIX Precision
Line amplifier. To expand the operation range of your
HELIX amplifier, your dealer will provide the following
HCCs as optional equipment:
Valid for all modules:
low pass:
red LED is on
high pass: yellow LED is on
full range: green LED is on
bandpass: red and yellow LEDs are on
(switchposition “low pass”)
ENGLISH
7
0
-5
-10
-15
dB
20
100
50
200
500
10
1K
15
Hz
HCC 1
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
HCC 2
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
variabel
70
Hz
90
60
110
500
170
70
Hz
100
60
150
700
250
400
Hz
500
300
750
5K
1,3K
600
Hz
800
500
1,3K
7K
2,5K
400
Hz
500
300
750
5K
1,3K
70
Hz
100
60
150
700
250
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
variabel
HCC 3
dB
100
1K
200
500
5K
10K
2K
Hz
0
-5
-10
-15
variabel
dB
100
1K
200
500
5K
10K
2K
Hz
0
-5
-10
-15
variabel
HCC 4
dB
100
1K
200
500
5K
10K
2K
Hz
0
-5
-10
-15
variabel
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
variabel
HCC 5
135
Hz
150
120
180
220
60
Hz
70
50
80
90
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
variabel
20
100
50
200
500
1K
15
Hz
0
-5
-10
-15
dB
10
variabel
HCC 6
HCC 1 85 Hz HP/LP
HCC 2 85 Hz HP/LP incl. subsonic
HCC 3 LP: 60-500 Hz / HP: 60-700 Hz
HCC 4 LP: 300 Hz-5 kHz / HP: 500 Hz-7 kHz
HCC 5 LP: 300 Hz-5 kHz / HP: 60-700 Hz
for bandpass
HCC 6 LP: 120-250 Hz / HP: 60-90 Hz
for bandpass (kickbass)
Pot.: LP1/LP2
Pot.: LP1/LP2
Pot.: LP1/LP2
Pot.: LP1/LP2
Pot.: HP1/HP2
Pot.: HP1/HP2
Pot.: HP1/HP2
Pot.: HP1/HP2
Crosscards HCC
HP1
LP1
LP2
HP2
