I am talking about getting off the alternating current grid, alternating current of course anathema to those of us who will go to almost, maybe I should delete almost, any lengths for good sound. And what better way to eschew the nasties of the wall socket than to forsake it altogether? Sure, I could either pick up an instrument or attend live unamplified music, but doing so would be giving up more than I am prepared to do. Leave my couch?!? These are supplements, not replacements, like tonic in gin. A crystal radio set? Hardly hi-fi, but well worthwhile building one. What, however, of running everything off batteries? Amplifier, source…. and loudspeakers that don’t ask for wall power?