TB-106 Front Surround Center Subwoofer Total Design 3driver, 2way 1 driver 3driver, 2way MTX-2：5.1 amplifier Tweeter 1x2.8" 　 1x2.8" 　 4x2.8" Midrange 2x2.8" 1x2.8" 2x2.8" 　 9x2.8" Bass Driver 　 　 　 1x8" 　 Material Aluminium Aluminium Aluminium Wooden 　 Accessory 　 Bracket Stand 　 　 Power Handling 2x40 watts 1x40 watts 2x40 watts 5x40+80 watts 　 Impedance 8 ohm 8 ohm 8 ohm 8 ohm 　 Sensitivity 90 db 90 db 90 db 87 db 　 Frequency Response 100Hz-20KHz 100Hz-20KHz 100Hz-20KHz 20Hz-20KHz 　 Remote Control yes Dimension(Uint:cm) 107x8.5x8.5 11.5x8.5x8.5 34x8.5x8.5 35x25.2x38 　 Container Load 235 sets/20'GP; 495 sets/40'GP; 580 sets/40'HC