If you can find a UK model blackface, you are on the top of the world. If you import an early SF or BF from USA, you can carry a step-down tranny. Don't temper with or re-wind your amp mains tranny to 230v - some of the amp soul will go down the drain. The RI of my friend was/is horrible. I understand new amps need breaking-in, & the P10R italian jensens sounded crap as expected - but man, not to THAT extent. Maybe it was that particular amp, mind you. It was a sorry & horrible experience, every time I play that amp. Not out of snobbery...I find the TRRI a great solid amp.