This flexibility can be useful even if you're an iOS-only household. AirPlay might work better in your home, but Bluetooth allows you to quickly start streaming in other locations where you might not have a Wi-Fi network to connect to.
Ports on the back are as limited as you'd expect from a wireless speaker: Ethernet, minijack, and analog input. That should be enough for pretty much every purpose, especially considering its wireless support. There's also a USB-like port, but it's labeled "Service" -- in other words, don't expect to connect your iPod or phone to this speaker, for charging or for music.
The back also features a convenient handle, which ironically highlights one of the Minx's shortcomings; it's not a portable speaker. The system is just small enough that you can imagine dragging it outside for patio duty, but there's no built-in battery, so it always needs to be plugged in.
Sound quality: Good, but not $600 good
I had the Minx Air 200 set up directly next to the Klipsch KMC 3 and Peachtree Audio Deepblue for listening tests, and while it held its own, the sound was thinner than you'd expect considering the price.
The punishing bass line from Queens of the Stone Age's "Medication" packed a punch on the KMC 3, but on the Minx Air 200 sounded noticeably less powerful. Led Zeppelin's "Moby Dick" sounded alive and aggressive on the Deepblue, but the Minx Air 200 just couldn't muster the same kind of energy. The Minx Air 200 certainly stacks up better than the Minx Air 100 did compared with the same speakers, but it still can't rock out on harder music.
The Minx Air 200 fared better with jazz and softer tunes. Thelonious Monk's "Brilliant Corners" had a nicely balanced sound, although switching back between the two other speakers revealed them to have a fuller sound. It's not the kind of difference you'd notice without direct comparisons, though, as the Minx Air 200 sounds pretty good in isolation.
The real problem is that both the KMC 3 and the Deepblue are significantly less expensive and the Minx Air 200 doesn't obviously trump them in sound. If you care enough about audio quality to spend $600 on a wireless speaker, you're going to be disappointed to know you can get better sound at a fraction of the price.
But like the smaller Minx Air 100, the Air 200's strength is creating a more laid-back sound that doesn't demand your attention, so if you're interested mostly in background tunes, the Minx may be a good fit.
Conclusion: Pretty, but not worth the price
On its own, the Minx Air 200 is an overall solid package, but it loses a lot of its luster once you consider its price and the performance of some of its competitors. If you're looking for a mellow speaker and don't mind paying for it, the Minx Air 200 is worth checking out; otherwise the alternatives generally offer a better value.