Integrated amp, best conversion 220 to 110 volts?

Many devices are built with a transformer that has taps for 220 and 110V. In that case all you need is a service technician that opens the unit and changes the taps from 220 to 110, and you are ready to go. Check if your Marantz is made like this. I have had this done with Rotel, McIntosh, and know Bryston is the same. It cost me all of us$50 per unit. BTW, initially I was told by McIntosh I had to change the torroid in the amp...fortunately had a reliable service tech who said otherwise.

Let us know if this works.

Thanks for the tip, Lewinskih01. There aren't any extra wires coming off the torroid, however -- all wires are being utilized. This suggests to me that I need to replace the transformer.

Just because all of the wires are used, doesn't mean it isn't convertable. A transformer designed for both 110 and 220V operation will have 2 primary windings. When wired for 220, the 2 primaries are in series and when used for 110, they are in parallel.

Aha. OK, thanks, I'll take it to an audio tech to check it out!