I want one. Those are sweet.

In any case, you can get a PDU (power distribution unit, read expensive power strip) that goes from 20 amp to 15 amp outlets from a number of computer accessory manufacturers, such as tripp-lite or APC. I suspect they also have surge protectors. However, such devices are often quite expensive. I wouldn't worry too much about using a 15 amp strip, especially if you're plugging the amp directly to the wall.

I am the Doctor, and THIS... is my SPOON!