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English GR OWNER’S MANUAL NS-C7HX Speaker System Thank you for selecting this YAMAHA NS-C7HX speaker system. PRECAUTIONS Read this before using the speakers. ● To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. ● Install the speakers in a cool, dry, clean place – away from windows, heat sources, sources of excessive vibration, dust, moisture and cold. Avoid sources of humming (transformers, motors). To prevent fire or electrical shock, do not expose the speakers to rain or water. ● To prevent the enclosure from warping or discoloring, do not place the speakers where they will be exposed to direct sunlight or excessive humidity. ● Do not place the following objects on the speakers: Glass, china, etc. If glass etc. falls by vibrations and breaks, it may cause personal injury. A burning candle etc. If the candle falls by vibrations, it may cause fire and personal injury. A vessel with water in it If the vessel falls by vibrations and water spills, it may cause damage to the speakers, and/or you may get an electric shock. ● Do not place the speakers where foreign objects such as water drips might fall. It might cause a fire, damage to the speakers, and/or personal injury. ● Do not place the speakers where they are liable to be knocked over or struck by falling objects. Stable placement will also ensure better sound performance. ● Placing the speakers on the same shelf or rack as the turntable can result in feedback. ● Any time you note distortion, reduce the volume control on your amplifier to a lower setting. Never allow your amplifier to be driven into “clipping”. Otherwise the speakers may be damaged. ● When using an amplifier with a rated output power higher than the nominal input power of the speakers, care should be taken never to exceed the speakers’ maximum input. ● Do not attempt to clean the speakers with chemical solvents as this might damage the finish. Use a clean, dry cloth. ● Do not attempt to modify or fix the speakers. Contact qualified YAMAHA service personnel when any service is needed. The cabinet should never be opened for any reasons. ● Secure placement or installation is the owner’s responsibility. YAMAHA shall not be liable for any accident caused by improper placement or installation of speakers. PLACING THE SPEAKER Place the center speaker on the floor under the TV or inside the TV rack so that it is stabilized. The center speaker should be set in alignment with the center of the TV screen. The positioning of the center speaker is important, because it controls the whole sound quality of a multi channel system. Set up the center speaker on the basis of your listening position by following the owner’s manual supplied with your amplifier. IMPORTANT Do not place the center speaker on top of the TV. If placed, the speaker may fall and possibly cause damage or personal injury. Main R Subwoofer Effect R Main L NS-C7HX Effect L 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. E-1 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. <Standard connections> ■CONNECTIONS Leave the short bars in place when connecting. Short bar Tighten Loosen + – NS-C7HX CENTER + – Amplifier or Receiver E-2 • 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 the speaker to the center terminals of your amplifier, making sure not to reverse the polarity (+, –). If the speaker is connected with reversed polarity, the sound will be unnatural and lack bass. How to connect: 1 Loosen the knob. 2 Insert the bare wire. [Remove the insulation coating at the extremity of each speaker cable by twisting the coating off.] 3 Tighten the knob and secure the cable. Test the firmness of the connection by pulling lightly on the cable at the terminal. Note Do not let the bare speaker wires touch each other as this could damage the speaker or the amplifier, or both of them. English <Bi-wired connections> Bi-Wired Connections Remove the short bars before connecting. 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 woofer and tweeter are 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. Tweeter terminals + To utilize bi-wired connections, remove the short bars from the terminals first, and then connect the woofer and tweeter to the amplifier separately using two pairs of cables. Woofer terminals – NS-C7HX CENTER + – Amplifier or Receiver When using a banana plug <General model only> Banana plug 3 1 1 2 3 Remove the cover by pulling it toward you. Tighten the terminal knob. Simply insert the banana plug into the terminal. 2 E-3 REMOVING THE FRONT COVER The front cover is fastened to the enclosure at four 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 four pegs on the speaker with the four corresponding holes on the inside surface of the cover and push gently. SPECIFICATIONS Type ....................... 2-way 3-speaker acoustic suspension speaker system Magnetic shielding type Driver ................................ 16 cm (6-1/2”) cone woofer x 2 Wave guide horn 3 cm (1”) dome tweeter Impedance ................................................................... 6 Ω Frequency Response ................................ 45 Hz to 50 kHz Nominal Input Power ................................................ 100 W Maximum Input Power .............................................. 300 W Sensitivity ................................................... 91 dB/2.83 V/m Crossover Frequency ............................................. 2.5 kHz Dimensions (WxHxD) ......................... 549 x 217 x 318 mm (21-5/8” x 8-1/2” x 12-1/2”) Note When the cover is removed, take care not to touch the speaker units with your hands or to exert excessive force with tools. E-4 Weight .............................................. 15.0 kg (33 lbs. 2 oz.) ● Specifications subject to change without notice due to product improvements. ● Care should be taken not to exceed the input power values noted above. YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA YAMAHA ELECTRONICS CORPORATION, USA 6660 ORANGETHORPE AVE., BUENA PARK, CALIF. 90620, U.S.A. CANADA MUSIC LTD. 135 MILNER AVE., SCARBOROUGH, ONTARIO M1S 3R1, CANADA ELECTRONIK EUROPA G.m.b.H. SIEMENSSTR, 22-34, 25462 RELLINGEN, BEI HAMBURG, F.R. OF GERMANY ELECTRONIQUE FRANCE S.A. RUE AMBROISE CROIZAT BP70 CROISSY-BEAUBOURG 77312 MARNE-LA-VALLEE CEDEX02, FRANCE ELECTRONICS (UK) LTD. YAMAHA HOUSE, 200 RICKMANSWORTH ROAD WATFORD, HERTS WD1 7JS, ENGLAND SCANDINAVIA A.B. J A WETTERGRENS GATA 1, BOX 30053, 400 43 VASTRA FRÖLUNDA, SWEDEN MUSIC AUSTRALIA PTY, LTD. 17-33 MARKET ST., SOUTH MELBOURNE, 3205 VIC., AUSTRALIA Printed in Indonesia V819440