Step up transformer

I don't know what brands are out there these days. The last time I used a step up was over 20 years ago. Sorry, can't be more helpful here.

Topaz (or MGE), Xentek, Deltec are all top-quality transformers. As for power
rating, Sidssp is in accord with many others when he says that 50% more will do
it. Some do say, though, that even more is still better, because even less likely to
saturate on high power draw. If you can find one rated double at reasonable
cost, I would go for it.

You need 1500 watts or higher.
Multi input voltage transformer made by SWALLOW company.
These transformers are made in JAPAN.
SWALLOW SU-2000,2000 WATTS.About 380 dollars.
SWALLOW SU-1500,1500 WATTS.About 300 dollars.
Thanks

There's a 28 amp Getra step up on Ebay for $27 but I'll bet shipping will be quite a bit. No relation.

Properly (or overly) sized, should be no detriment although some can have mechanical hum... no guarantee. Some benefit through filtering and DC blocking. Some extra power draw, even at no load.