Yamaha NS-B310 - Manual (Page 6)

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The front cover is attached to protect the speaker, but you can
remove it if necessary.
The front cover is fixed by magnets. Hold the speaker with one
hand, and pull the front cover gently with the other to remove it.
Notes
• When removing the cover, be careful that you don't touch
the drive units, and don't exert excessive force with any
tools.
• There are magnets on the reverse side of the front cover. Do
not place a front cover close to objects that might be affected
by magnets, such as CRT TV, clock, magnetic card,
diskette, etc., after removing it.
NS-B310
Type .................... full-range acoustic suspension speaker system
Non-Magnetic shielding type
Driver .......................................8 cm (3-1/8”) cone full-range × 2
Impedance ............................................................................... 6
Ω
Frequency Response ............................ 80 Hz to 35 kHz (-10 dB)
to 50 kHz (-30 dB)
Nominal Input Power........................................................... 40 W
Maximum Input Power ...................................................... 120 W
Sensitivity ........................................................... 87 dB/2.83 V/m
Dimensions (W × H × D)............................ 107 Ч 200 Ч 127 mm
(4-3/16” Ч 7-7/8” Ч 5”)
Weight............................................................ 1.6 kg (3 lbs. 8 oz.)
NS-C310
Type .......................... 2-way acoustic suspension speaker system
Non-Magnetic shielding type
Driver ...................................... 6.5 cm (2-9/16”) cone woofer × 4
3 cm (1-3/16”) soft dome tweeter
Impedance ............................................................................... 6
Ω
Frequency Response ........................... 90 Hz to 45 kHz (-10 dB)
to 100 kHz (-30 dB)
Nominal Input Power........................................................... 40 W
Maximum Input Power ..................................................... 120 W
Sensitivity .......................................................... 90 dB/2.83 V/m
Crossover Frequency ......................................................... 6 kHz
Dimensions (W × H × D).............................. 440 Ч 94 Ч 125 mm
(17-5/16” Ч 3-11/16” Ч 4-15/16”)
Weight............................................................ 2.9 kg (6 lbs. 6 oz.)
• Specifications subject to change without notice due to product
improvements.
• Care should be taken not to exceed the input power values noted
above.
• A speaker cable is not included with this model.
REMOVING THE FRONT
COVER
NS-B310
NS-C310
SPECIFICATIONS
Taking care of the speaker
When you wipe this unit, do not use chemical solvents (e.g.,
alcohol or thinners, etc.): this might damage the finish. Use a
clean, dry cloth. For difficult soils, dampen a soft cloth in
water, wring it out, and then wipe with the cloth.