Yamaha NS-FP4600 5.1 Channel Speaker Package NSFP4600 Natural Sound 5.1 Channel Package 3-Way Front Speaker System with Quad 4" Woofer & 3/4" Tweeter 2-Way Center Speaker System with Dual 3" Woofer & 3/4" Tweeter 2-Way Surround Speaker System with 3" Woofer & 1/2" Tweeter Includes Extruded Aluminum Tabletop Speaker Stands Removable Grill Cloth for All Satellite Speakers 6.5" 100 Watts Cube High Power Subwoofer Advanced YST and QD-Bas Magnetic Shielding for All Speakers Slim Speaker System Design Frequency Response: 30 Hz-40 kHz Front Speakers: 3-Way Acoustic Suspension with Quad 4" Woofers & 3/4" Soft-Dome Tweeter Input Power: 120Watts Max/35Watts Nominal 83 dB/2.83 V/1m Sensitivity Impedance: 6 Ohms Front Speakers Dimensions (W x H x D): 23-13/16" x 7-3/8" x 3-15/16" Center Speaker: 2-Way Acoustic Suspension with Dual 4" Woofers & 3/4" Soft Dome Tweeter Input Power: 100 Watts Max/30 Watts Nominal 82 dB/2.83V/1m Sensitivity Impedance: 6 Ohms Center Speaker Dimensions: (W x H x D): 14-5/8" x 4-3/8" x 4-3/8" Surround Speakers: 2-Wau Acoustic Suspension with 3" Woofer & 1/2" Balanced Dome Tweeter Input Power: 100 Watts Max/30 Watts Nominal 82 dB/2.83V/1m Sensitivity Impedance: 6 Ohms Surround Speaker Dimensions (W x H x D): 5-1/8" x 8-1/2" x 4-3/8" Subwoofer: Advanced YST/QD-Bass Subwoofer 100 Watts of Dynamic Power Output Power: 50 Watts, RMS: 5 Ohms 6.5" Multi-Range Driver Subwoofer Dimensions (W x H x D): 11" x 12-13/16" x 11-9/16"