[. . . ] Precautions •  Always wear protective eyewear during instllation. €  prevent noise pick-up, keep the wiring of this unit away from motors, high-voltage To leads and other possible noise sources. [. . . ] Otherwise, they may play with the bag, which could cause hazard of suffocation. Water and moisture — Do not install the speakers in locations which may be subject to water or moisture. Dust and unstable locations — Do not install the speakers in unstable locations or locations subject to dust. Modification — Do not attempt to open or modify the unit, for this could cause fire hazard or malfunction. Cleaning — Do not use gasoline, naphtha, or any type of solvent to clean the speakers. Malfunction — In the event the unit generates smoke or abnormal smell or no sound comes out from the speaker, immediately switch the power OFF. After this, please contact your dealer or nearest service station as soon as possible. Note: Observe the following cautions to prevent damage to the speakers. € You cannot input the same power as “peak power” continually. €  When the volume is set too high, the sound may be distorted or abnormal. [. . . ] Using the crossover network in high temperature (under direct sunlight) may cause the protection circuit to operate easily. 6-1 Ligações gerais / Note: Be sure to use the supplied Passive crossover network. [. . . ]