To use this EAW Otto Adaptive Subwoofer, first make sure you have a suitable power supply as it doesn't come with one. Connect your audio source to the subwoofer using the appropriate cables. Place the subwoofer in a location where it can effectively disperse sound. When it comes to maintenance, keep it clean by gently wiping the surface with a dry cloth. Avoid exposing it to excessive moisture or direct sunlight. And always remember that it doesn't have a True1 Powercon cable, so use the right power cable for a proper connection.