MPExclusive 2.0 XL - Receiver MAC AUDIO - Free user manual and instructions

USER MANUAL MPExclusive 2.0 XL MAC AUDIO

• Complementary push-pull nal stage

• Automatic switching on/off via car radio

• Innitely adjustable high pass and low pass lters

• Innitely variable bass equalisation

• Electronic protective circuit against short circuiting, DC offset and excess temperature

• Mute switch for suppressing switch-on crackle interference

• Low-level outputs (cinch jacks) for connecting additional ampliers

• Operating display (green LED) and overload indicator (red LED)

3. IMPORTANT INSTALLATION INFORMATION

• This appliance may only be connected to a 12 volt system with negative ground.

• The heat radiated when the amplier is used means that sufcient 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 amplier may not be installed in small conned spaces or spaces without air circulation (e.g. spare wheel recess or under the vehicle carpeting). Installation in the boot is recommended.

• Install the amplier 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 sufciently 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.

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 terminal have been sufficiently specified. A cable cross-section of at least 6 mm² 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 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 mm² is sufficient for connecting the amplifier‘s REMOTE connection and the control device.

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.10

4.3 LOUDSPEAKER CONNECTIONS

• In normal operating mode (i.e. one loudspeaker on each individual amplier channel), the lowest terminal resistance is 2 ohm per channel.

• In bridging mode (two amplier outputs combined) the lowest terminal resistance doubles to 4 ohm.

• The impedance in tri-mode may not fall below 2 ohm per channel.

• Never connect the loudspeakers‘ minus terminals to the vehicle chassis.

• Never connect the +12 V supply voltage to a loudspeaker output as this would destroy the amplier nal stage. If the amplifier is operated with lower terminal resistances or incorrectly used as described above, both the amplifier and the loudspeakers may be damaged. The warranty becomes void in such cases.

The input sensitivity may be adapted to any car radio or tape deck. Turn the volume control of your radio to its cen- tral position and then adjust the input-level control (3) to produce an average medium volume. This setting usually provides sufcient power reserves at optimum weighted noise voltage. ATTENTION: only reproduce loud test noises briefly to prevent damaging the loudspeakers.

5.2 LOW-PASS FILTER WITH ADJUSTABLE CROSS-OVER FREQUENCY

If the amplifier is used as a subwoofer amplifier, set the switch (7) to „LPF”. Set the desired cross-over frequency with the control (6). This makes the filter adaptable to the installed woofer‘s sound requirements. The filter‘s high edge steepness is responsible for the precision reduction of medium and high frequency ranges.

5.3 HIGH-PASS FILTER WITH ADJUSTABLE CROSS-OVER FREQUENCY

If the amplifier is to be used as an amplifier for satellite loudspeakers (mid-range/tweeter loudspeakers), set switch (7) to „HPF“. Set the desired cross-over frequency with the control (5). Only the frequencies above the set cross-over frequency will then be amplified. This effectively minimizes distortions caused by excessive membrane movement at low frequencies and small satellite loudspeakers without reducing the bass level.

The bass-boost function (4) is used to increase or equalize the lower bass frequencies.

5.5 OUTPUTS FOR CONNECTING ADDITIONAL AMPLIFIERS

The input signal of the LINE INPUT connections L and R (2) is forwarded directly to the LINE OUT (1) L and R jacks. The LINE OUT connections allow the use of additional amplifiers without requiring additional T-plugs and cables.

FIG. 1 POWER SUPPLY / REMOTE SWITCH-ON CONNECTION

(1) GND terminal for the ground, to the battery‘s minus pole (2) REM terminal for remote switch-on (3) Terminal for +12 V battery voltage (4) Battery (5) Cable fuse (6) To your car radio‘s automatic aerial connection If your car is not equipped with an automatic aerial connection, connect this cable‘s plus pole (+) to the ignition lock. An on/off switch should be inserted in this case. Make sure that this switch is switched off if the amplifier is not used.11

Connect and set the amplier as shown in Fig. 2 if it is to be controlled with two output channels and to use two loudspeakers. The high-pass lter must also be activated if the amplier is also used for satellite loudspeakers. See Chapter 5.3. (1) To the car radio, left output (2) To the car radio, right output (3) Loudspeaker left (4) Loudspeaker right FIG. 3 BRIDGE MODE WITH STEREO CAR RADIO If the amplifier has to generate more power to operate a subwoofer, connect and set it as shown in Fig. 3. The use of the low-pass filter is described in Chapter 5.2. (1) To the car radio, left output (2) To the car radio, right output (3) Subwoofer FIG. 4 MONO MODE WITH ONE CAR RADIO WITH SUBWOOFER OUTPUT (1) To the car radio, subwoofer output (2) Subwoofer

4.3 HÖGTALARANSLUTNINGAR

1. The guarantee period commences with the purchase of the component and is applicable only to the original owner.

2. During the guarantee period we will rectify any defects due to faulty material or workmanship by replacing or repairing the defective part at our discretion. Further claims, and in particular those for price reduction, cancellation of sale, compensation for damages or subsequential damages, are excluded. The guarantee period is not altered by the fact that we have carried out guarantee work.

3. Unauthorized tampering with the equipment will invalidate this guarantee.