Switch-Mode vs Linear: The Truth About Power Supplies

Bill Johnson, the founder of Audio Research Corp. and a legend in our business, said that he wanted power supply components to be of such high quality that music could be enjoyed through each of the parts.We know that all audio equipment uses power — usually DC in variety — to amplify or produce the music we love, and his point is clear: clean power is as essential to the eventual excellence of a product as any of the other parts therein.We also know that the power supplied to our homes is AC, and must be converted to DC before these devices can do their magic work, so it makes sense that the more pure the DC power is, the better for the rest of the audio circuit.But do you know how this is pulled off? If the terms “ripple” or “rectifier” aren’t part of your lexicon, this week’s podcast will change that as Darren and Duncan winnow down to the nuts and bolts of what makes power supplies tick — and how the good ones are made. And even if you are familiar, this podcast will undoubtedly offer something new for your perspective.A treasure trove of power-specific information is laid out in a way that dips in and out of engineer land to reveal in plain terms how the alternating current from our walls is converted and made clean and pure before it makes its way through our beloved stereo components and eventually to our ears as music.Generally, there is a distrust of switch mode supplies in our hobby, but the guys explain that the real truth isn’t that simple. A good power supply is good because excellent decisions are made in its design and arrangement, regardless of what it’s called.Be sure to stick around to the end, where a truly stunning album pick of the week is revealed — one that will light up your audio system like the fireworks on the Fourth of July.  This podcast is powered by CommonGround Cables Whisper power cable. Read customer reviews and order your own at www.commongroundcables.com.Find all of our album recommendations in one place, at www.thehifipodcast.net.