It wasn't so much a vow as a prediction: After selling my last pair of Ticonal-magnet drivers and the homemade horns I'd carted around to three different houses, I supposed I would never again have a Lowther loudspeaker in my humble house.

That remains literally true: The 7" full-range drivers to which I'm listening today are from a German company called Voxativ; the horn-loaded cabinets from which they play were also designed by Voxativ, and are made in Germany by the Wilhelm Schimmel piano company. And, with all due respect to Lowther, the 75-year-old English loudspeaker firm that launched a thousand DIY fantasies—not to mention a thousand very lively wavefronts—the Voxativ drivers and horns take the Lowther concept further than anyone else of whom I'm aware.

"Good grief, has he lost his hearing?"

It was the distant past, a time so long ago that the M in MTV stood for Music, and I was watching a David Bowie concert on TV. The svelte singer was wearing what I took to be hearing aids.