[. . . ] Configuration of the rubber stoppers may be different from the figure, such as being 2 sheets instead of 1 sheet, but the total number will be same. The front grilles are not designed to be removed so do not attempt to remove them forcibly, as this will damage them. [. . . ] Use thick stoppers for the center speaker, and thin stoppers for the other speakers. The Home Cinema means that you can enjoy surround sound with a real sense of movement in your own home -- just like being in a movie theater or concert hall. Front left and right speakers (SKF-548) They should be positioned facing the listener at about ear level, and equally spaced from the TV. Angle them inward slightly so as to create a triangle, with the listener at the apex. Center speaker (SKC-548) Position it close to your TV (preferably on top) facing forward at about ear level, or at the same height as the front left and right speakers. Surround left and right speakers (SKR-548) Position them at the sides of the listener, or slightly behind, about 60 to 100 cm (2 to 3 feet) above ear level. Type Impedance Maximum input power Sensitivity Frequency response Cabinet capacity Dimensions (W × H × D) Weight Drivers unit Terminal Other Bass-reflex type Passive subwoofer 6 130 W 82 dB/W/m 30 Hz to 150 Hz 24 L 211 mm × 425 mm × 381 mm (incl. Type Impedance Maximum input power Sensitivity Frequency response Cabinet capacity Dimensions (W × H × D) Weight Drivers unit Terminal Keyhole slot Grille Other Full Range Bass-reflex 6 120 W 82 dB/W/m 80 Hz to 20 kHz 1. Type Impedance Maximum input power Sensitivity Frequency response Cabinet capacity Dimensions (W × H × D) Weight Drivers unit Terminal Keyhole slot Grille Other Full Range Bass-reflex 6 120 W 82 dB/W/m 80 Hz to 20 kHz 1. Type Impedance Maximum input power Sensitivity Frequency response Cabinet capacity Dimensions (W × H × D) Weight Drivers unit Terminal Keyhole slot Grille Other Full Range Bass-reflex 6 120 W 80 dB/W/m 80 Hz to 20 kHz 1. [. . . ] Connect positive (+) terminals to only positive (+) terminals, and negative (­) terminals to only negative (­) terminals. If the speakers are wired incorrectly, the sound will be out of phase and will sound unnatural. [. . . ]