This is a 100v, Japan edition of the Yamaha C1 Preamplifier, I am including a stepdown voltage transformer that steps down 120v to 100v in order to use this unit in USA, it will ship by USPS and the preamplifier will be double boxed and shipped FedEx Everything works perfect on the unit, and it sounds fantastic, the clarity is incredible.There are some blemishes around the unit one to the right of the "left" imprint and another to the right of the "right" imprint by the meters I included pictures of them.This unit pairs best with one of the Yamaha B V-FET amps and Beryllium speakers, it doesn't get much better than that