OK, as to the OP, use it as a PS for an audio amp, but rectify the output directly, no more tranformers. Should be able to get plus and minus 150 or so. Feed that into some nice hefty pitput transistors and make the streets quake.

150*.707=106.05*106.05=11,246.6025/8=1,405.8253125 watts RMS

That is some serious power.

Make sure you charge some money for this of it works.

Just sayin'.