To use these Clair Bros 15CX loudspeakers, first connect them to a suitable audio source. Place them in a well - ventilated area away from direct sunlight and moisture. When setting up, make sure they are at a proper height and angle for the best sound dispersion. During normal use, avoid overloading the speakers with high - volume audio for long periods as it may damage the drivers. For maintenance, regularly dust the speakers using a soft, dry cloth. If there are stubborn stains, use a mild cleaning solution on a damp cloth and gently wipe the surface. Do not immerse the speakers in water or use abrasive cleaners.