Using your KEF LS50 Meta Passive Speakers is easy. First, connect them to an amplifier within the recommended power range of 40 - 100 W. Place them in the room where you want to enjoy the 3D sound experience. You can use the mounting inserts to attach them to the KEF S2 Floor Stand if you have one. When it comes to maintenance, keep the speakers clean by gently wiping them with a soft, dry cloth. Avoid exposing them to extreme temperatures or humidity. Also, make sure the amplifier you use is in good working condition to ensure the best sound quality. If you notice any issues with the sound, check the connections and the amplifier settings.