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3.1
Voltage and polarity
SIGNAT amplifiers can only be installed in vehicles in which the 12-volt negative terminal is
grounded. If the amplifier is connected to other systems, the electrical system of the car and
the amplifier can be damaged.
3.2
Fuses
WARNING:
A blown fuse indicates a problem that should be corrected before the fuse is replaced! If you
need to replace the power fuse, replace it only with a fuse identical to that supplied with the
amplifier. This also applies to fuses in the supply system close to the battery. Bridging fuses
or using a fuse of different type or rating may result in severe damage to the amplifier and the
electrical system of the vehicle; this isn't covered by the warranty.
3.3
Cabling – general instructions
WARNING:
Disconnect the negative (-) battery cable before making any connections.
All cable connections must be laid without risk of pinching, squeezing or breaking in a way
they can be inspected and handled without problems in the area of the corresponding
equipment connection components. Sharp corners and edges must be protected against
abrasion by abrasion-resistant padding. Plastic hoses and feed-through grommets may also
be used here.
Cables should never be laid alongside electrical or other supply lines to items of car
equipment or in the immediate neighborhood of such equipment (fan motors, fire control
module, and fuel lines). Moreover, cross-talk interference occurs in the audio system if audio
cables are laid alongside other electrical cables, which can drastically reduce the pleasure of
listening.
In general, care should be taken that all connection materials used are of high quality and
easy to handle.
All bright selections of wire must be permanently insulated. The cable cross-sections must be
appropriate to the power requirement and the capacity of the SIGNAT amplifier.
We recommend the following minimum cross-sections:
Power supply +12Volt and ground cable:
2 m
151-200 A
20
101-150 A
20
81-100 A
10
61-80 A
6
41-60 A
4
31-40 A
4
21-30 A
4
0-20 A
4
Remote-turn-on-cable: min. 1.5 mm²
An incorrect cable size (cross-section) will cause a poor sound quality; furthermore the
amplifier and the electrical system of the vehicle can be completely destroyed by using it with
incorrect cable size!
3
Connection
3 m
4 m
5 m
35
50
70
35
35
50
20
35
35
20
20
20
6
10
20
6
10
10
6
10
10
4
6
6
6 m
7 m
95
95
70
70
50
50
35
35
20
20
20
20
20
20
10
10
8
8 m
9 m
120
120
95
95
50
70
50
50
20
35
20
20
20
20
10
20
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