Here is the web site for a much better power supply. I have one for my V-DAC.
http://www.rock-grotto.co.uk/musical-fidelity-vcan-vdac-vlps-power-supply.html
http://www.rock-grotto.co.uk/musical-fidelity-vcan-vdac-vlps-power-supply.html
Musical Fidelity V-Can Headphone Amp