Magnat Audio PHANTOM 4000, Руководство пользователя

Страница: 10 / 66

10
GB
2. FEATURES
•
Complementary push-pull final stage
• Stable at 2 ohms
• Infinitely adjustable high-pass filter
• Infinitely adjustable low-pass filter
• Infinitely adjustable subsonic filter (channel 3 and 4)
• Infinitely variable bass equalisation (channel 3 and 4)
•
Bridgeable 4-/3-/2-channel mode
• Electronic protective circuit against short circuiting, DC offset and excess temperature
• Mute switch for suppressing switch-on crackle interference
• Capsulated loudspeaker and power-supply screw terminals
• Dual-colour LED (green = operation indicator / red = overload indicator)
3. IMPORTANT INSTALLATION INFORMATION
• This appliance may only be connected to a 12 volt system with negative ground.
• The heat radiated when the amplifier is used means that sufficient air circulation is required at the place of
installation. It is very important that the cooler’s cooler ribs do not contact any metal plating or any surfaces which
could impair air circulation. The amplifier may not be installed in small confined spaces or spaces without air
circulation (e.g. spare wheel recess or under the vehicle carpeting). Installation in the boot is recommended.
• Install the amplifier in such a way that it is protected as far as possible against vibrations and dust and dirt.
• Make sure that the input/output cables are sufficiently distant from the power supply cables as otherwise
interference may occur.
• Make sure that the fuse and operating elements are accessible after installation.
• The appliance’s reliability and performance depend on the quality of installation. Preferably get an expert to install
the system, particularly if you want to install several loudspeakers or a complex multi-way system.
4. CONNECTIONS
4.1 POWER SUPPLY AND AUTOMATIC SWITCHING ON
IMPORTANT NOTICE:
Before commencing the installation, disconnect the plus terminals from the car battery
in order to prevent short circuits.
The power cabling usually installed in on-board car networks is not sufficient for a power amplifier’s demands. Make sure
that the power lines to GND and to the +12 V (B+) terminal have been sufficiently specified. A cable cross-section of at
least 12 mm
2
(PHANTOM 4000) / 16 mm² (PHANTOM 4500) must be used to connect the battery to the amplifier’s
terminals.
First connect the amplifier’s GND terminal to the battery’s minus pole. It is very important that the connection is good. Dirt
residues must be carefully removed from the battery’s connection point. A loose connection may cause malfunctions or
interference noise or distortion.
The +12 V (B+) amplifier connection must then be connected with a power cable possessing an integrated fuse to the
battery’s plus pole. The fuse must be located close to the battery, the length of cable from the battery's positive pole to
the fuse must be less than 60 centimetres for safety reasons. Only insert the fuse when all installation work, including the
connection of the loudspeakers, has been completed.
Now connect the car hi-fi receiver’s remote control connection to the amplifier’s REM control jack. A cable with a cross-
section of 0.75 mm
2
is sufficient for connecting the amplifier’s REMOTE connection and the control device.
4.2 AUDIO CABLES
When installing the audio cable between the cinch output of your car receiver and the cinch input of the amplifier inside
your car, the audio and power supply cables should, wherever possible, not be routed along the same side of the vehicle.
We recommend an isolated installation, e.g. routing the power cable through the cable duct on the left-hand side and the
audio cable through the cable duct on the right-hand side or vice versa. This reduces interference due to crosstalk into
the audio cables.