Kanto’s YU2s seem to come from a time when speakers were solid, simple structures; proud temples to sound that said of their owners, Hey, I’m serious about music, and I know what I’m doing. Aesthetics were important, of course, but unquestioningly took a backseat to sound. Sound was king.

If you haven’t heard of Kanto before, that’s OK — the Canadian outfit just sprouted up in the Vancouver suburbs around five years ago. The YU2s are Kanto’s latest speakers, the smallest of their lineup of a half-dozen or so, and they’re designed to fit unobtrusively on a bookshelf or desk and play music from your computer or mobile device.

The YU2’s performance during our review, however, was nothing short of astonishing — and they could very capably substitute for larger speakers in a variety of roles.

Surprise: These cans aren’t quite the flashy, youthful boombasts their outward appearance suggest (yes, that’s a good thing). And, surprise: There’s much more here than simply a nod at the term “active noise cancellation.”

SMS, which is helmed by Rapper 50 Cent, jumped into the headphone game just shy of three years ago. At that time the lion’s share of attention was directed toward their wireless Sync cans, which stream music via the somewhat uncommon Kleer technology. But that doesn’t mean the rest of SMS’s broad, diverse lineup should be ignored, and that assertion is well-supported by the performance — and, yes, dash of flash – of the wired, active noise-canceling Street by 50 ANC headphones.

There aren’t many in-ear monitors made of steel. Aluminum? Yes. Plastic? Wads. But steel-bodied IEMs — now that’s a rare find. There’s good reason for this: Though the material is solid, hard-wearing and, according to some, produces a cleaner sound, it’s heavy — which can make steel-housed IEMs often uncomfortable and annoyingly ill-fitting.

But forget all that. Scottish-based RHA have managed to make the stainless steel-bodied MA750i supremely comfortable and well-fitted, even under heavy action. In fact, RHA absolutely nailed it perfectly with these ‘phones in every single category that matters, with only two or three minor trade-offs.

What really sets the youthful, rough-and-tumble Boom Urchin apart from the rest of its brethren in the crowded Bluetooth speaker market is its flexibility.

Like other ruggedized BT speakers, the Urchin can withstand splashes and moderate abuse — but Boom has also equipped the Urchin with a smart array of effective, fun, useful little accessories that allow the Urchin to easily tag along on adventures that might be awkward for other speakers.