Using the EAW NTS22 subwoofer is easy. First, make sure to connect it to the correct power supply that comes with it. Place it in a suitable position in your audio setup for the best sound effect. When using, avoid exposing it to extreme temperatures or humidity. For maintenance, keep it clean by gently wiping it with a dry cloth regularly. If there are any problems, don't try to open it by yourself. Contact the professional service team for help.