[. . . ] For customers in the United States Speaker System Owner’s Record The model and serial numbers are located on the rear of the unit. [. . . ] For customers in the United States Speaker System Owner’s Record The model and serial numbers are located on the rear of the unit. Refer to them whenever you call upon your Sony dealer regarding this product. 9 kg (1 lb 16 oz) Speaker cord (1) Foot pads (4) Connection • Before connecting, turn off the amplifier to avoid damaging the speaker system. € + Speaker Placement Foot pads Tampons de pieds Almohadillas para las patas Amplifier Amplificateur Amplificador Please note that room acoustics can often produce large difference in the sound for small changes in speaker placement. € Place the speaker system against a hard wall with its back about 10 cm (4 in) away from a wall. The proportion of bass increases as you move a speaker closer to intersecting room surfaces (wall and wall, etc. [. . . ] € Place the speaker system against a hard wall with its back about 10 cm (4 in) away from a wall. [. . . ]