Almarg, if you're saying that .775 volts is enough to drive an amp, you're more mistaken than the rest.
If all of youse chip in, you might be able to round out that square peg you're trying to fit in a round hole by chipping of the corners, or maybe you can square the hole a bit.
Almarg, what do you think "MAX" is? Do you drive 120 MPH or whatever the max speed your car will go?