I have an emagic 2l6, up until recently it has stayed in the same configuration and has not shown the tone like noise some other users have reported. well now it is doing the tone like noise thing. I remember reading there was a power supply you could get for it to stop making the noise. anyone know where or what the rating is? (I would rather get the right rating PSU than order it from the USA as I am in canada) thanks! haven siguenza