Using your EAW Otto Adaptive Subwoofer is easy. First, find a suitable place for it in your audio setup. Remember, since it doesn't come with a power supply, you'll need to get one separately that's compatible with it. Also, you'll have to get a True1 Powercon cable if you don't have one. When it comes to maintenance, keep it in a dry place away from direct sunlight. You can use a soft cloth to clean the exterior every once in a while. And be careful not to drop it or expose it to any physical shocks as it can damage the 18 - inch cones inside.