[. . . ] English Attaching the foot pads Be sure to attach the supplied foot pads to the bottom of the speaker to stabilize the speaker and prevent it from slipping. [. . . ] € This speaker system is driven best by an amplifier or receiver rated as per the wattage indicated in the specification section. © 2013 Sony Corporation Printed in Malaysia Note Avoid driving the speaker system continuously with a wattage exceeding the maximum input power of this speaker system. Precautions Standard Connection/Raccordement standard/ Conexión normal • Do not attempt to open the enclosure or remove speaker units. € Keep recorded tapes, watches, and personal credit cards using magnetic coding away from the speaker system. [. . . ] The proportion of bass increases as you move a speaker closer to intersecting room surfaces (wall and wall, etc. [. . . ]