Yamaha NS-55 Owner's Manual - Page 2
Placing The Speakers, Removing The Front Cover, Specifications - floor speakers
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PLACING THE SPEAKERS ● Place the speakers on a sturdy vibration-free surface. If you cannot obtain good bass quality when the speakers are placed directly on the floor, insert a block etc. between the speakers and the floor. ● Better stereo images will be obtained when the speakers are slightly angled in towards the listeners. Note Bacause these speakers are not a magnetically shielded type, there may be some influence on a TV picture depending on the type of TV or the placement of the speakers. In such a case, place the speakers apart from the TV. SPECIFICATIONS Type 3-way 4-speaker bass-refrex speaker system Speaker Unit 20 cm cone woofer x 2 10 cm cone mid-range 3 cm dome tweeter Nominal Impedance 6 ohms Frequency Response 40 Hz - 20 kHz (-10 dB) Nominal Input Power 70W Maximum Input Power 250W Sensitivity 90 dB/W·m Dimensions (WxHxD 264 x 886 x 316 mm 10-3/8" x 34-7/8" x 12-7/16") Weight 13.6 kg (29 lbs. 15 oz.) Accessories Speaker cable (4m) x 1 Type 2-way 3-speaker bass-reflex speaker system Speaker Unit 16 cm cone woofer x 2 3 cm dome tweeter Nominal Impedance 6 ohms Frequency Response 43 Hz - 20 kHz (-10 dB) Nominal Input Power 60W Maximum Input Power 220W Sensitivity 90 dB/W·m Dimensions (WxHxD 230 x 780 x 275 mm 9-1/16" x 30-11/16" x 10-13/16") Weight 10.8 kg (23 lbs. 13 oz.) Accessories Speaker cable (4m) x 1 * Specifications subject to change without notice due to product improvements. * Care should be taken not to exceed the input power values noted above. REMOVING THE FRONT COVER The front cover is fixed to the cabinet at six points, and can be removed if desired. To remove the cover, hold 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-55 NS-45 Note When the cover is removed, take care not to touch the speaker units with your hands or to exert excessive force with tools. V276650