I am wanting to start building high power audio amps. Of course, I realize the need to have a good, reliable bench power supply. I priced some and they are pretty outrageous. So, I figured I'd get a schematic and just build it first. The problem I am facing is that all the amp designs I have require higher voltages and the power supply schematics I find are all relatively low. What kind of sense does that make? I have one amp that needs plus and minus 85 volts at nearly 3 amps, yet I haven't found anything close to that. Granted, in these forums, I found higher voltage designs by some of the members, but they are all below 1 amp. Am I just looking for something that doesn't exist?