I guess this is a question for RH. Even after reading "The Complete Guide to High-end Audio" I remained confused about one basic of electricity that I see referenced in TAS all the time. That being the difference between Current and Voltage. Amps like the Krells are said to be in Current Mode when going from Amp to Preamp to CD player. The new NAD M2 reduces the number of voltage conversion points. Here's my question: If the flow of electricity has both volume and force (current and voltage), wouldn't it always have to have both? How could current flow without the force of voltage and how can voltage have flow without current being present??? HELP!!! I can't get my wits around this one! Don't mean to be so obtuse but your assistance in this area would be greatly appreciated.