Yamaha NS-A638 Book Shelf Speakers -Three-Way Acoustic - 10 To 140 Watt Max - Set Of TwoConsecutive Serial Numbers8-INCH WOOFER THREE-WAY BOOKSHELF SPEAKER SYSTEMThe NS-A638 utilizes an 8\" woofer, 4\" midrange, and 3/4\" ferro-fluid cooled dome tweeter. It delivers powerful, clean, and accurate sound.
MAGNETICALLY SHIELDED
The NS-A638 is magnetically shielded so that it can be placed near a TV or video monitor and not degrade the picture quality.
MICRO-PEBBLE FINISH
The black micro-pebble finish look goes handsomely with most room decor.
GRILLE DESIGN
Grille design and satin grille cloth provide an attractive and acoustically transparent protective cover for the drivers.Type: Three-Way Acoustic Suspension, Magnetically Shielded Bookshelf
Driver Complement: Woofer = 8 in. Hi-polymer Coated Cone with Inverted Dust Cover, Midrange = 4 in. cone with Inverted Dust cover, Tweeter =3/4 \' in. Dome, Ferro-fluid cooled
Input Power: Nominal = 70 W, Music Input = 140W
Frequency Range: 90 to 20,000 Hz
Sensitivity: 91 dB/W/M
Dimensions: Width = 10-1/2 in., Height = 16-3/16 in., Depth = 13 in.
Weight: 14 lbs., 6 oz. EachThese speakers are in very good, used condition.

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