-Innovated D/A converter with USB correspondence for variety of functions, terminals, and connections.-Featuring high sound quality circuit from the SACD player. -High resolution sound source of sampling frequency. -Built-in head phone amplifier and pre-amp circuit. -XLR balance output terminal for superior resistance noise efficiency. -Supports both PC and Mac environments This unit comes in Japan Standard AC 100V (50hz/60hz)For European Customers : You need a Voltage Stepdown Transformer. (from 220~240v to 100v) Sold SeparatelyFor US and Canadian Customer : You need a Voltage Stepdown Transformer. (from 110~120v to 100v) Sold SeparatelySpecificationOutput: 2W+2W/8O, 1W+1W/16O, ½ W+ ½ W/32OInput Sensitivity/Impedance: 1V/47KOFrequency Response: 10-100kHz (+0dB, -3dB)THD: 0.015%S/N Rate: >100dBSystem: Front Panel: Power switch, Volume control, Input switch (2 way), Outputs: 1(Standard ¼E plug), Output 1(mini plug)Rear Panel: 2 x stereo RCA Inputs, 1 x Throughout output (loop), AC inletPower/Power Consumption: AC 100V (50/60Hz) /16WDimensions: 14.3" (364) (W)×3.3" (84)(H)×10.1" (257)(D)