step up transformers


I am buying a Sphinx Project 16 amp from Austria and want to use it the USA. Prior to rewiring the amp I wanted to get a step-up transformer to use the amp. It is a high current design so the transformer needs to handle plenty of current. Does anyone have any recommendations on the tranformers that won't adversely impact the sound.
128x128baranyi
YEH THEY HAVENT GOT THE ONE i WONT IN STOCK IT WAS A 5 KVA EXTREME ISOLATION TRANSFORMER Xentec #EIT5.0-2 The inter-winding capacitance is 0.001pf. Input 100, 120, 200, 220, 240, VAC 50/60 Hz. Output 120/240 VAC. Stock #STR2150 $395.00 I FOUND A PLACE CALLED SAM STORES THEY HAVE RANGE ALSO NOT SURE ON THE QUALITY JUST KEPT GOOGLING IF YOU FIND SOMTHING BETTER LET ME KNOW.
Hi try this place they are highly rcommend just ordered my self for the same reason.
http://www.candhsales.biz/cgi-bin/shop991/shop.pl/SID=200731383/page=ULIS.htm#ST
Hope this helps.