YST-SW2163YST-SW216 SPECIFICATIONSType .................. Advanced Yamaha Active Servo Technology IIOutput Power ..................... 50 W (100 Hz, 5 ohms 10% T.H.D)Input Sensitivity ....................... 50 mV (100 Hz, 50 W / 5 ohms)Dynamic Power .................................................. 100 W, 5 ohmsInput Impedance ....................................................... 12 k-ohmsFrequency Response ....................................... 25 Hz to 180 HzDriver ........................................... 25cm (9-13/16") Cone WooferMagnetic Shielding TypeInput/Output SectionINPUT1/OUTPUT ........................................... Speaker TerminalINPUT2 ................................................................... RCA Pin jackOperation SectionPower Switch, Volume Control, High Cut Switch, LED indicatorPower SupplyU, C models .................................................... AC 120 V, 60 HzR, L models ...................... AC 110-120 / 220-240 V, 50 / 60 HzA model ........................................................... AC 240 V, 50 HzB, G models .................................................... AC 230 V, 50 HzPower Consumption ......................................................... 45 WDimensions (W x H x D) ......................... 340 x 340 x 384.5 mm(13-3/8" x 13-3/8" x 15-1/8")Weight ..................................................... 11.2 kg (24 lbs. 11 oz.)FinishBlack color ....................................... U, C, R, A, B, G, L modelsAccessoriesNonskid pad x 4* Specifications are subject to change without notice due toproduct improvements.U .......... U.S.A. model C ...... Canadian modelR .......... General model A ...... Australian modelB .......... British model G ...... European modelL .......... Singapore model• DIMENSIONSUnit: mm (inch)340 (13-3/8")340 (13-3/8") 340 (13-3/8")384.5 (15-1/8")12.5(1/2")32(1-1/4")Advanced YST IIThis subwoofer system employsAdvanced Yamaha Active ServoTechnology II which Yamaha hasdeveloped for reproducing higherquality super-bass sound.This super bass sound adds a morerealistic, theater-in-the-home effectto your stereo system.www . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com