A:Answermy understanding is that if you buy it in the USA it only works on USA style electricity. the strobe indicator has 50 hertz listed so I assume that if you buy this device in Europe it will work on European electricity
A:AnswerWhat they mean by that is that the preamp has The RIAA equalisation Curve. This is standard for phono preamps. all records since the 1950s are encoded with this curve in order to minimize noise in the upper register.
A:AnswerIt can be paired with self amplifying speakers. This actually is being done a lot these days with people who just want to play records. As an example, look at the Edifier R1180T powered books shelf speakers. The problem with self powered speakers is that most cannot be used as regular speakers later.