psst, roberjerman, might want to remove that if there's still time because, not sure if you know, but Mark Levinson? Its an electronic amplifier for music, not an internal combustion engine car for driving. I know it can be hard with so many different technologies to keep them straight. Try thinking, gas, electrons. Oil, electricity. Wires, pipes. Whatever works. Its different for different people. But do try and find something. Otherwise its just really embarrassing when you come off not knowing the difference.