The front speakers used in the HTX-77HDX are sold individually; It can be developed into 5.1CH home theater system; Accessories: Speaker cable (11.8 ft (3.5 m) x 2; Model: 2-way; Sealed type; Rated impedance: 6 ohms; Maximum input: 40 W; Rated sensitivity level: 77.5 dB/W/m; Frequency response: 137 Hz - 37 kHz; Cabinet contents : 0.8 liters Maximum External Dimensions (W x H x D): 8.7 x 47.2 x 8.7 inches (220 x 1200 x 220 mm); Weight: 6.6 lbs (3.0 kg) (1 unit); Woofer: 5.9 x 1.6 inches (15 x 4 cm); Cluster Driver; Tweeter: 0.8 inch (2 inch (2 inch (2 inch (2 inch (2 cm) Soft Dome; Terminal: Gold plated brass shredding screw type.