A.Introduction HD-1308K is 100 ~ 300W/8 Ohm digital power amplifier module and with switching power supply design. Advantages as bellows: *Class-D and switching power Design for high efficiency, high stability & lighter weight. *Output power : 100 ~ 300W / 8ohm mono *Easy for application B.Features: 1.AC Input jumper selection 115V / 230V 2.Short circuit protection 3.Over current protection 4.Thermal protection 5.Digitalize amplifier with high current output device 6.RoHS compliant C.Specification 1.output power ……………… 100~300W /8 Ω @ 1% THD 2.S/N Ratio @ rated power ……………………………………… > 100 dB @ A-WEI 3.THD @ -3dB rated power …………………………… < 0.05% 4.Input sensitivity …………………………………………… @1.5V 5.Input Impedance ……………………………………………………… 22KΩ 6.Frequency response 20Hz ~ 20K Hz +/- 1dB 7.Dimension: 152(L) x 83(W) x 55(H) mm