[. . . ] this product has been manufactured by or on behalf of Sony Corporation , 1-7-1 Konan Minato-ku Tokyo , 108-0075 Japan. Inquiries related to product compliance based on European Union legislation shall be addressed to the authorized representative, Sony Deutschland GmbH, Hedelfinger Strasse 61, 70327 Stuttgart, Germany. [. . . ] Connect the terminals of the right speaker to the right speaker terminals of the amplifier, and connect the terminals of the left speaker to the left speaker terminals of the amplifier. Periodically checking the tightness of the binding posts is recommended to prevent them from becoming loose as time passes. About aging The speakers take some time to provide their best performance. Play the speakers at normal volume for about 10 hours to break them in. specifications Speaker system Speaker unit Rated impedance Maximum input power Sensitivity Frequency response Dimensions (w/h/d) Mass Supplied accessories 2-way 4-driver speaker system , Bass reflex Woofer: 130 mm (5. 25 in), cone type (1) Tweeter: Main tweeter, 25 mm (1 in), dome type (1) Assist tweeter, 19 mm (0. 10 kg (22 lb 1 oz) Cleaning cloth (1)  Setting the speakers A B Set the distance between the speakers to less than the distance between the listening position and each speaker. speaker placement is one of the most important factors in obtaining high-quality sound. Observe the following when placing your speakers to obtain full advantage of the speaker characteristics:  Set up the speakers on a hard, flat floor. Ώ Place the speakers near a hard wall with their rears more than 30 cm (12 in) away from the wall. Ώ Place the speakers so that the tweeters are at the same height as your ears when you are seated. Ώ Place the speakers at an equal distance from the listening position. Ώ If you cannot place the speakers wide enough apart, turn the speakers slightly outward. Likewise, if the speakers must be placed more than 2 meters (80 in) apart, turn them slightly inward for more effective stereo sound. [. . . ] 5 mm (3/16 in) in diameter) bared by stripping the jacket to 10 mm (13/32 in) from each + and - end The bare cable core may become oxidized over time. In this case, reconnect the speaker cords after stripping the jacket to expose a fresh segment of cable core at each end. [. . . ]