Approximately 33¹/₃ years after AudioQuest's first phono cartridge, the company announced two new USB D/A headphone amplifiers: the DragonFly Black ($99) and the DragonFly Red ($199). Both have circuits designed by the engineer responsible for the original DragonFly—Gordon Rankin, of Wavelength Audio—and both have the novel distinction of requiring considerably less operating power than their predecessors, so much less that the new DragonFlys can be used with iPhones, iPads, and various other mobile devices.

Fifteen years ago, when I was the Editor of Listener, I wrote a response to a reader's letter in which I repaid unpleasantness with unpleasantness: something I justified by flattering myself that my brand of unpleasantness had the advantage of being clever. Not satisfied with making his point sound foolish, I made certain that the writer of that letter would himself be made to look ridiculous. I made fun of his name, too.

Prior to publication, I showed my handiwork to my wife, Janet, as per my usual practice. I expected her to laugh at the funny bits and praise my superior logic, also as per usual.

Thiel Audio's CS3.7 loudspeaker was launched, to much fanfare, in 2006. Like most of Jim Thiel's designs, the CS3.7 received universal praise, but it was Jim's swan song. No one could predict that he would pass away in 2009, undoubtedly leaving on his desk many future designs.

But more was in the cards for—and from—Thiel Audio. The company was sold in 2012 to a private equity company based in Nashville; soon thereafter Thiel Audio moved to that city from Lexington, Kentucky, where Jim had co-founded it in 1977. Thiel's longtime president, Kathy Gornik, left, and for a while the company's directors came and went as if through a revolving door.