Switching/converting volt Grant Fidelity Rita880

Hi, anyone knows if this tube integrated can be switched or converted to 220v?
I really want to try one and I´m tired of serching and nobady could told me something trustable. May some fella´s Audiogon opened one and can confirm me if it is possible to rewire or just switch internally.
Best wishes, Eric
Why not email or call Grant Fidelity? I am always puzzled why questions like this are asked here instead of contacting the retailer or manfacturer.