Intended Use, Safety Instructions, Mounting

Intended Use

The subwoofer MB QUART serves to convert electric output signals of car am- pliﬁers to audible sound waves. The loudspeaker connection may only be used on loudspeaker outputs of such devices. The connection for the subwoofer light is only intended for operation on a 12 V DC on-board net with negative pole of the car battery on the car body. The subwoofer may only be operated in cars and trucks with this type of on-board voltage. Use is only permitted in- side the car and not on the outside. Direct contact with moisture, dripping or spray water must be avoided at all times. Any other use may lead to damage to the subwoofer and is also tied to risks like short circuit, ﬁre, etc.

No part of the product may be modiﬁed or converted. The safety instructions must be observed at all times!

!Safety Instructions

The warranty will be rendered invalid for damage caused due to non- compliance with these operating instructions. We shall not be liable for any consequential loss! We shall not accept liability for damage to pro- perty or personal injury caused by incorrect handling or non-compliance with the safety instructions. In such cases the guarantee will lapse.

An exclamation mark in a triangle indicates important information in these operating instructions which are to be strictly followed. Please read the operating instructions through completely before use. They contain important information for correct operation.

·For safety reasons, any unauthorised conversion and/or modiﬁcation to the product are not permitted.

·Never subject the subwoofer to high temperatures, water drops or splashes, strong vibrations as well as heavy mechanical strain.

·Never pour any liquids onto electric appliances and do not place any liquid- ﬁlled objects on it.

·Do not place open sources of ﬁre such as burning candles alongside the appliance.

·When connecting the subwoofer, the safety instructions of the device to which it is connected must also be observed.

·Do not place any magnetic devices like discs, video cassettes, etc. close to the subwoofer, as the magnetic ﬁeld of the loudspeakers may destroy the recorded information on these storage media.

·Do not listen to excessively loud music for longer periods of time. This could damage your hearing.

·An excessive volume inside the car can lead to the reaction that acoustical warning signals are not be heard any longer. You and other road users are endangered by this. Therefore, pay attention to a suitable volume.

·Inattentiveness in trafﬁc can lead to serious accidents. Operation of the hi- ﬁ system may therefore only take place if the trafﬁc situation permits and you are not distracted by operating the system from the trafﬁc situation.

·Do not leave the packaging material lying around carelessly. Plastic ﬁlms and/or bags and polystyrene parts etc. may become dangerous toys in the hands of children.

·If you are not sure about the correct connection or if questions arise which are not covered by the operating instructions, please do not hesitate to contact our technical support or another specialist.

!Mounting

Changes to the vehicle due to the installation of the subwoofer or other components must always be carried out in such a way that they do not impair the trafﬁc safety or the structural safety of the vehicle. With many cars, the operating license will already lapse if you saw out a part of the sheet metal. If you are in doubt when selecting a place for installati- on, consult your car dealer. Prior to drilling, make sure that this does not damage any electric cables, brake leads, the fuel tank or similar. If using tools to install your car hi-ﬁ components, observe the manufacturer‘s safety instructions. When installing the subwoofer or your hi-ﬁ system, observe the risk of injuries posed by torn off devices in case of an ac- cident. Therefore, fasten each part securely and at a place at which it cannot become a risk for the passengers. Install the subwoofer in a place where the illumination does not irritate you or other drivers. Therefore, the illumination may not be visible from the driver‘s seat and the out- side.

·Look for a suitable installation site for the subwoofer.

·Attach the speaker casing with straps or similar ﬁxtures. The ﬁxture must also be able to bear the load of the speaker in case of an emergency stop or an accident.

·The boot is a suitable place for installation.

!Connection

In order to prevent short circuits and the resulting damage, the negative pole (earth) of the car battery must be disconnected during connection. Only re-connect the negative pole of the battery when the device is fully connected and after you have checked the connection. Only use a volt meter or a diode test lamp for checking the voltage on the on- board leads, as normal test lamps take up excess voltage and may thus damage the on-board electronics. When connecting the subwoofer, make sure that the connection cables are not squashed or damaged by sharp edges. The loudspeakers may only be connected to suitable outputs of car ampliﬁers. Please make sure that the values for impedance and loading capacity stated in the technical data harmonise with the values of the connected ampliﬁer. Otherwise damage to the loudspeakers or the amp- liﬁer can occur. As voltage source for the illumination of the subwoofer, you may only use the 12 V DC on-board net (negative pole of the battery on the car body).

In order to ensure clear playback, you must operate the subwoofer via an ampliﬁer with active switch, which ensures:

·that there is enough output

·that the speaker is only supplied with the deep bass range of the music signals. Depending on the vehicle, set the separation frequency of the active switch between 80 and 120 Hz.

Connect the loudspeaker leads from the audio ampliﬁer with the loudspeaker connection terminal on the subwoofer.

Red connection > positive loudspeaker connection

Black connection > negative loudspeaker connection

Connect the illumination terminal of the models with the vehicle‘s power supply.

·Connect the connection „+“ of the illumination terminal with a voltage source operated via the ignition. When turning the ignition off, this also turns off the subwoofer‘s illumination. This guards against the car battery becoming ﬂat.

·Connect the connection „-“ of the illumination terminal with a suitable earth point.

·If the subwoofer is installed in the boot, you may for example connect it to the boot light. The light then switches on automatically when the boot is opened.