When one company swallows another, it’s common for a slow shift in rebranding and design to occur as the two entities thrash out their roles and relationship. The latest shift in the Logitech-Ultimate Ears story — Logitech purchased UE in 2008 — occured a month or so ago, when Ultimate Ears was rebranded as Logitech UE and launched a suite of high-end, blue-tinged soundware, with a product selection that reached far beyond the in-ear monitors the company has thus far been known for. In fact, out of seven new gadgets, just one new IEM was introduced: the Logitech UE 900 ($400), a quad-armature earphone that now sits at the pinnacle of UE’s non-custom earphone line.

The UE 900 has lineage, of course; we loved the snug fit, solid build and amazing sound of its antecedent, the TripleFi 10. But the TripleFi 10 is gone, and the UE 900 has stepped into its place with new ergonomics, a new sound — and a lot of blue.

If you live an active lifestyle and have trouble finding a pair of earbuds to stay put while you’re working up a sweat, then you might want to check out our next deal. For a limited time, you can pick up a MEElectronics Sport-Fi S6 earphone workout package for only $32. That’s a great price for a package that includes:

I remember saying something to the effect that these Monster Inspiration headphones (passive noise isolation, $300) looked like fluff when I first encountered them at the Consumer Electronics Show earlier this year. Boy was I wrong.

You’re an American, and you’ve just watched your athletes come away with a barrel full of gold medals in London. Maybe you’re feeling a little patriotic; maybe a little like you want to go out and train for Rio de Janiero. If so, then Monster has created the perfect earphones for you: A special edition “USA” version of their impressive, washable, iSport IEMs.

We bumped into neophyte Australian headphones-maker Audiofly in January, during a press-only event at this year’s Consumer Electronics Show, and gave two models in the four-model lineup a whirl. Their mid-level AF45 set sounded great for $50; but the next one I tried — the top-of-the-line AF78 ($200) — left me slack-jawed with disbelief; its sound knocked my socks off, even amid the cacophony of noisy journalists.

What makes the AF78 unusual is its speaker arrangement.

Many mid-to-high-end canalphones are powered by tiny armature speakers, while moving coil drivers are found pretty much everywhere except the very high end. Armatures are generally better at producing clean highs and mids, but can lack deep bass; moving coils, on the other hand, are generally not as good at reproducing the clarity of an armature. But the AF78 is part of an elite group of models  — like the Scosche IEM856m I reviewed last year — that employ both a moving coil speaker and a balanced armature in each ear, in an attempt to give the listener the best of both worlds. And it works spectacularly.