Simaudio saw disc-based digital audio in its rear-view mirror at least as far back as 2011, when it introduced the Moon Evolution 650D and 750D—two iterations of what it called a "digital-to-analog converter CD transport." These were actually multiple-input CD players, but Simaudio was evidently so eager to distance itself from the spinning disc that it went with a product category that, in spite of its cumbersome, run-on name, drew a clean line between the disc-reading and signal-processing functions—while bestowing upon the former second-class citizenship.

Two of the great jazz pianists on the scene have just released two of their greatest trio albums: Fred Hersch, Sunday Night at the Vanguard (Palmetto); and Brad Mehldau, Blues and Ballads (Nonesuch).

Your little car gets in and out of traffic better than minivans or monster trucks. Your little dog runs rings around the other dogs at the park. Maybe it's time to get a couple of little loudspeakers, too?

The reasons for doing so are pretty much the same: little speakers deserve consideration not because they sell for little prices—although some of them do—but because they're nimble, they're fast, and they get out of the way of the music they play.

Twenty-three years ago, in 1993, Charles Hansen cofounded Ayre Acoustics, Inc., in Boulder, Colorado. On Ayre's website, Hansen is named as Research Director for Ayre, and it seems an apt description. Along with experimenting in and developing audio-electronics hardware and software, Hansen has strongly hewn to certain design principles, among them fully balanced operation, an absence of loop negative feedback, and solid-state circuitry. Ayre's current flagship preamplifiers and amplifiers, the twentieth-anniversary R Series, have received reviews and accolades, while at the other end of the budget spectrum, Hansen's design work was a key element of Neil Young's widely publicized and crowdfunded PonoPlayer project.