Yamaha NS-P280 Owner's Manual - Page 10

Frequency characteristics The following graph shows the frequency characteristics of the subwoofer (NS-SW280). 100 dB 90 80 70 60 50 40 20 50 100 200 500 Hz The following graph shows the combined frequency characteristics of the subwoofer (NS-SW280) and front speakers (NS-B280). 100 dB 90 80 70 60 50 40 20 NS-SW280 NS-B280 50 100 200 500 Hz Troubleshooting If this product doesn't work as expected, look for a possible cause below. If the issue you are experiencing is not listed, or you cannot resolve it after reading through these instructions, disconnect the power cable and contact an authorized Yamaha dealer or service center. Issue There's no sound. The sound is very quiet. Possible cause The speaker cables are not connected properly. The speaker cables are not connected properly. Remedy Make sure the speaker cables are connected properly. Make sure the speaker cables are connected properly: L (left) to L, R (right) to R, "+" to "+" and "-" to "-". ■ Subwoofer (NS-SW280) Issue The POWER switch is set to ON but the subwoofer doesn't work. There's no sound. The subwoofer is too quiet. Possible cause Remedy The power cable is not connected Set the POWER switch to OFF, then make sure the power properly. cable is connected properly. The VOLUME control is set to 0. Turn up the VOLUME control. The subwoofer cable is not connected properly. Make sure the subwoofer cable is connected properly. The source material doesn't contain much bass. Try playing source material that contains more bass. Bass sounds are being cancelled Reposition the subwoofer, or break up parallel wall surfaces out by standing waves. by placing bookshelves or other large objects along the wall. Specifications ■ Front, center, and surround speakers (NS-B280) Type Full-range acoustic-suspension speaker system non-magnetic shielding type Driver 6.5 cm (2-1/2") cone speaker Nominal input power 30 W Maximum input power 80 W Impedance 6 Ω Frequency response 110 Hz-40 kHz Sensitivity 81 dB/2.83 V, 1 m Dimensions (W x H x D 90 x 90 x 109 mm (3-1/2" x 3-1/2" x 4-1/4") Weight 0.45 kg (1 lbs.) ■ Subwoofer (NS-SW280) Type Advanced Yamaha Active Servo Technology Driver 16 cm (6-1/2") cone woofer non-magnetic shielding type 5 En Output power 50 W (100 Hz, 5 Ω, 10% THD) Dynamic power 100 W, 5 Ω Input impedance INPUT (1P RCA pin jack): 10 kΩ Frequency response 30 Hz-160 Hz Input sensitivity INPUT (1P RCA pin jack): 80 mV (50 Hz, 50 W/5 Ω) Power supply U.S.A. and Canada models AC 120 V, 60 Hz Australia model AC 240 V, 50 Hz U.K. and Europe models AC 230 V, 50 Hz China, Korea, Asia, and General models AC 110-120/220-240 V, 50/60 Hz Dimensions (W x H x D 262 x 264 x 316 mm (10-3/8" x 10-3/8" x 12-1/2") Weight 6.9 kg (15.2 lbs.) Specifications are subject to change without notice.