User manual MAC AUDIO MPX 4000

[. . . ] the amplifier is characterized by low operating current , rapid switching capabilities and excellent temperature stability. Increased output power can be achieved by switching two amplifier channels in an amplifier together in bridging mode. Experience and enjoy how this high-tech machine perfectly reproduces magnificent sound. Please read all of the owner's manual before installing and using the amplifier. [. . . ] 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. 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. 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. 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 amplifier final 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. 1 SETTING THE INPUT SENSITIVITY The input sensitivity may be adapted to any car radio or tape deck. Turn the volume control of your radio to its central position and then adjust the input-level controls (3) and (4) to produce an average medium volume. This setting usually provides sufficient power reserves at optimum weighted noise voltage. ATTENTION: only reproduce loud test noises briefly to prevent damaging the loudspeakers. This makes the filter adaptable to the installed woofer's sound requirements. 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. 4 BASS-BOOST The bass-boost function (5/6) is used to increase or equalize the lower bass frequencies. The LINE OUT connections allow the use of a subwoofer amplifier without requiring additional T-plugs and cables. 1 POWER SUPPLY / REMOTE SWITCH-ON CONNECTIONS (1) (2) (3) (4) (5) (6) GND terminal for the ground, to the battery's minus pole REM terminal for remote switch-on Terminal for + 12 V battery voltage Battery Cable fuse 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. Make sure that this switch is switched off if the amplifier is not used. [. . . ] Unauthorized tampering with the equipment will invalidate this guarantee. Should it prove necessary to return the component to the factory, please insure that · The component is packed in original factory packing in good condition · The quality control card has been filled out and enclosed with the component, · Your enclose your receipt as proof of purchase. Shipping damages, either readily apparent or concealed (claims for such damages must be lodged immediately with forwarding agent, the railway express office or post office). (You must notify your dealer directly of such defects within three days of purchase. [. . . ]