Okay so I just got me a Valvedrive from the Classifieds and to save on international shipping, I asked the seller not to include the power supply. I figured I'd need to buy an Ausyralian one anyway. Only problem is my local electronics shop only has a 1amp power supply while the Valvedrive has a current draw of 500mA. Would this be safe to use? Does the pedal only draw what is needed or will the extra current damage it?