110V to 230V power conversions

Hello, I'm new here...just looking through some of your systems; there's some crazy stuff there.

Anyway, I thought I'd take advantage of the favourable exchange rate at the moment and get some hifi stuff from the US.

Does anyone have experience of converting from US [110V] to UK [230V]. I'm thinking in particular of Pass Labs X600 and X1, and possibly a Sony SCD-1...?

How much would it cost roughty to convert? Does the cost depend a lot on what component it is?

Thanks!