Good evening Mr. Mark Let me introduce myself: my name Ciro and the city of Torino in Italy. Excuse my English is not very accurate .. Why is the contact? I was doing a search on the Internet in relation to the preamplifier Spectral Dmc30 and visiting various websites I have seen also that "The Art of the Sound," which appears in his (wonderful!) Spectral electronic system. I noticed that she had long ago sold his Dmc30. And I noticed that you rightly pointed out that the preamplifier working at 110v. But it was possible to convert 230v (with an additional cost of $ 250) What interests me clarify this. I'm looking for a Dmc30SL. If I could find in the American market, would have a voltage of 110v. Should I then run it to 230v. But how could I do? Is there a kit to buy directly from Spectral? Have any suggestions for me? Best regards Ciro