Hats off to Westone, which two years ago introduced the triple-driver model Westone 3, both for moving the industry forward, and for utter consistency of design. Three successor models have followed Westone 3 and used almost the exact same housings: Westone 1 and 2 were single- and double-driver versions, but Westone 4 ($449) now matches Ultimate Ears by packing four speakers into each of its glossy black plastic enclosures. From the outside, the…
