richopp, if you do not understand plugging a speaker into an electrical outlet, instead of an output stage of an amplifier ( using an ac plug, instead of spades or banana plugs at the amp end ), I do not know what to tell you. Comparing an old transistor radio, and stating the superiority, of a properly set up, properly driven set of 901s, shows me a few things about you. I will not go into those details, as I do not want my post to be deleted by the Audiogon police. Enjoy !