Magnat Audio BLACK CORE FIVE, Owner'S Manual/Warranty Document

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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 amplifier connection must then be connected with a power cable possessing an integrated fuse to the battery’s plus pole. The
fuse should be located close to the battery; for safety reasons, the cable from the positive terminal of the battery to the fuse must not exceed
60 cm in length. 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 mm²
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.
4.3 LOUDSPEAKER CONNECTIONS
• In normal operation, i.e. speakers connected at all amplifier channels, the minimum permitted load impedance is 2 ohm per channel.
• In bridge-mode operation, i.e. amplifier outputs connected in groups of two each, the minimum permitted load impedance is twice as
high at 4 ohm.
• Never connect the negative terminals of the loudspeakers to the car chassis!
• Never connect the +12V power supply line to a loudspeaker output! This will cause irreparable damage to the amplifier power stage!
• In bridge-mode operation connect the loudspeakers as shown in figure 5.
• Attention : Channel 5 must never be connected to the outputs of channels 1 – 4.
WARNING: Operating the amplifier connected to speaker systems with lower combined impedance values than those
specified or incorrect operation as described above can damage both the amplifier and the connected speakers! Such
incorrect connection and/or operation voids the warranty.
5. CONTROLS, INPUTS AND OUTPUTS
5.1 SETTING THE INPUT SENSITIVITY
You can adjust the input sensitivity precisely to match any car receiver or tape deck. To make this adjustment set the volume control of
your receiver to the middle position and then adjust the input level controls (4), (6) and (10) for an average medium volume level. This
setting will normally give you enough reserve power with optimum signal to noise performance.
WARNING: Only play loud test signals for brief periods to prevent damage to your speakers!
5.2 HIGH PASS FILTER WITH ADJUSTABLE CROSSOVER FREQUENCY
Channels 1 to 4 of the amplifier may be used for driving satellite (medium/tweeter) speakers. Set selector (1) to “HP” for channel 3 and 4.
Adjust the desired crossover frequencies by means of controls (3) and (5). This ensures that only the frequencies above the set crossover
threshold are amplified, which effectively minimises the excessive speaker membrane deflection and resulting distortion that low frequencies
can cause in small satellite speakers, without reducing the bass signal level.
5.3 LOW PASS FILTER WITH ADJUSTABLE CROSSOVER FREQUENCY
Channels 3 to 5 may be used as subwoofer channels. For channels 3 and 4 set selector (1) to “BP“ and control (3) at “15 Hz”. Adjust the
desired crossover frequency by means of controls (2) and (12). Thus, the filter can be adapted to sound requirements of your woofer. The
high edge steepness of the filter ensures that mid and high range frequencies are reduced very precisely.
5.4 BAND-PASS FUNCTION FOR CHANNELS 3 AND 4
The filters integrated in channels 3 and 4 may be used as a band-pass by activating the high-pass and low-pass filters simultaneously. This
option is required for setting up an active 3-way system (see fig. 2 in the appendix). The selector (1) must be in its position “BP“. Controls
(3) and (2) may now be used to set the lower and upper limit frequencies of the resulting band-pass.
5.5 BASS-BOOST (CHANNEL 5)
The bass-boost function (11) is used to increase or equalize the lower bass frequencies.
5.6 INTERNAL SUMMING AMPLIFIER
The internal summing amplifier generates a sum signal from
a) channels 1 and 2:
Switch (1) is set to “2CH” position or
b) channels 1 to 4: Switch (1) is set to “4CH” position or
c) channels 5/1 and 5/2: Switch (1) is set to “5/6CH” position
to control channel 5.
If a radio with a separate subwoofer output is used, the switch (1) is set to "5/6CH" and the car radio subwoofer output connected to one
of the two the cinch jacks (7).
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