User manual YAMAHA NS-777-NS-555

[. . . ] · Never put a hand or a foreign object into the port located on the rear of the speaker as this might cause bodily injury and/or damage to the speaker. · When moving the speaker, do not hold the port as it might cause bodily injury and/or damage to the speaker. · Any time you note distortion, reduce the volume control on your amplifier to a lower setting. · When using an amplifier with a rated output power higher than the nominal input power of the speaker, care should be taken never to exceed the speaker's maximum input. [. . . ] View from the bottom of the speaker (L) Back (R) (R) Front (L) Use the 8 specified holes located on the base of the speaker. Note Be carefull not to apply force to the side of the speaker, otherwise the speaker may fall causing damage to the speaker or personal injury. 2 CONNECTIONS TO YOUR AMPLIFIER This speaker system is capable of standard connections and bi-wired connections. Before making connections, make sure that the amplifier is switched off. Short bar Loosen + How to Connect: 1 Remove the insulation coating at the extremity of each speaker cable by twisting the coating off. Tighten Good No Good NS-777/NS-555 (R) NS-777/NS-555 (L) 2 Loosen the terminal knob. Test the firmness of the connection by pulling lightly on the cable at the terminal. Note SPEAKERS Do not let the bare speaker wires touch each other to avoid damaging the speaker or the amplifier, or both of them. A Speaker output terminals of the amplifier R L + + B Using a Banana Plug Banana Plug Amplifier or Receiver ICONNECTIONS · Connect the screw-type input terminals at the rear of the speaker to the speaker output terminals of the amplifier (or receiver) with the speaker cable. · Connect the (+) terminals on the amplifier (or receiver) and the speaker using one side of the cable. Connect the (­) terminals on both components using the other side of the cable. · Connect one speaker to the left (marked L) terminals of your amplifier, and another speaker to the right (marked R) terminals, making sure not to reverse the polarity (+, ­). If one speaker is connected with reversed polarity, the sound will be unnatural and lack bass. ! 1 Remove the speaker terminal cover by gently pulling it toward you. 3 Simply insert the banana plug into the terminal. English 3 [Bi-Wired Connection] Remove the short bars before connecting. Tweeter terminals . PLACING THE SPEAKERS Place the speakers on a sturdy, vibration-free surface, on a well-built stand. IUsing as 2ch stereo speakers Better stereo images will be obtained when the speakers are slightly angled in towards the listeners. + Mid-woofer/ woofer terminals NS-777/ NS-555 (R) NS-777/ NS-555 (L) NS-777/ NS-555 (R) NS-777/ NS-555 (L) SPEAKERS SPEAKERS R L R L IUsing as main speakers in a multi channel system A + + ­ ­ + ­ ­ + B Amplifier or Receiver Amplifier or Receiver Both SPEAKERS A and B should be selected. Position the speakers on both sides of the TV. The positioning of speakers is important, because it controls the whole sound quality of a multi channel system. Set up the speakers on the basis of your listening position by following the owner's manual supplied with your amplifier. NS-777/ NS-555 NS-777/ NS-555 Subwoofer Center This speaker system is capable of bi-wired connections. To connect the speaker to the output terminals of the amplifier (or receiver), two pairs of cables for each of mid-woofer/ woofer and tweeter used instead of standard connections. This type of connection decreases the modulation distortion caused by electric resistance of the cables and driving current of the speakers. Consequently, purer sound quality can be expected. Rear effect To utilize bi-wired connections, remove the short bars from the terminals first, and then connect the mid-woofer/ woofer and tweeter to the amplifier separately using two pairs of cables. Note This speaker features a magnetically shielded design, but there is still a chance that placing it too close to a TV set might impair picture color. Should this happen, move the speaker away from the TV set. 4 REMOVING THE FRONT COVER The front cover is fastened to the enclosure at six points and can be removed if desired. To remove the cover, hold on to both sides and slowly pull straight away from the speaker. To reattach, line up the six pegs on the inside surface of the cover with the six corresponding holes on the speaker and push gently. NS-777 SPECIFICATIONS NS-777 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-way bass reflex speaker system Magnetic shielding type Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 cm (8") cone woofer x 2 Wave guide horn 13 cm (5") cone mid-range Wave guide horn 2. 5 cm (1") dome tweeter Frequency response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Hz ­ 35 kHz Nominal impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 30 Hz 35 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 dB/2. 83 V/m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kHz4 kHz ( ×× ). . . . . . . . 276 mm × 1100 mm × 390 mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( × 2× 2) × 4 × 8 × 4 NS-555 NS-555 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]