TB-505 Front Surround Center Subwoofer Total Design 3driver, 2way 3driver, 2way 3driver, 2way MTX-2：5.1 amplifier Tweeter 1x2.8" 1x2.8" 1x2.8" 　 5x2.8" Midrange 2x2.8" 2x2.8" 2x2.8" 　 10x2.8" Bass Driver 　 　 　 1x8" 　 Material Aluminium Aluminium Aluminium Wooden 　 Accessory 　 　 Stand 　 　 Power Handling 2x40 watts 2x40 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 30Hz-200Hz 　 Remote Control yes Dimension(Uint:cm) 52x8.5x8.5 52x8.5x8.5 34x8.5x8.5 35x25.2x38 　 Container Load 280 sets/20'GP; 580 sets/40'GP; 680 sets/40'HC