1 With very efficiency power conversion, strong power output, low power consumption, environmentally. 2 Use Japan Sanken transistor. 3 Letter “D”means this amplifier has the 4 way output power source function. 4 +means this amplifier has display screen. The display screen have four contents:1year/month/day; 2hour/. Minutes/seconds; 3the mains voltage (+-2V); 4the amplifier inside temperature. 5 […]