Across the back of the Go + Play are four connections for USB output, AC power input, aux input, and S-Video output. The connections are each covered by flexible rubber flaps that protect against dirt and moisture. On the bottom of the Go + Play you'll find a battery compartment that accommodates 8 D-cell batteries, which can power the system for around 18 to 24 hours. We noticed that the Go + Play's audio playback volume isn't quite as loud using battery power as opposed to the AC adapter, so if your goal is to wake the neighbors, then you're better off plugging into the wall.
The Go + Play isn't much for bells and whistles, and the few features it does include are a little out of date. There's no FM radio, no clock, no LCD to display song titles, and the S-Video output feature isn't compatible with recent iPod models. The USB output is a convenient feature for syncing your docked iPod to a nearby computer, however, as the product's name suggests, the Go + Play is built to be nomadic, not tied down to a computer desk. If there's one feature to brag about on the Go + Play, it's the exceptional remote control. The included remote has a design that's as equally eye-catching as the speaker it controls, and the RF technology hidden inside allows you to mute, skip, and crank your music with much more freedom than the wimpy IR remotes included with most systems.
Without a doubt, the Go + Play is the best-sounding portable iPod speaker system we've tested. Held up against systems such as the Altec Lansing iMT702, Logitech Pure-Fi Anywhere, the Go + Play blows them all away with greater power, incredibly deep lows, crisp highs and an overall sound quality better than most bookshelf speaker systems in the same price range. With 60 watts of power and an expertly tuned speaker enclosure, the Go + Play is loud enough to fill even the largest room in your house.
The Go + Play even held up well against small, nonportable, high-performance iPod speaker systems, such as the Griffin Amplifi, and Kicker iK500, pumping out richer, louder sound and looking good while doing it, too. Specifically, the Go + Play offers better low end than the Bose SoundDock, more treble clarity than the Griffin Amplifi, and tighter (but no less dramatic) low frequency performance than the Kicker.
The Go + Play is a powerful little system with quality construction, and a sound that can hold up to the toughest scrutiny, but it comes with a price tag to match. For $350, you could buy a very tasteful little bookshelf system with a CD player, iPod dock, and FM radio. That's not to say the Go + Play doesn't prove its value, but you're dropping a healthy chunk of change for what is ostensibly an iPod boombox. If you like the idea of a battery-powered iPod speaker system, but sound quality and design aesthetics aren't the most important criteria, you could save some serious money going with a system from Altec Lansing, Griffin, or Logitech. And if you're really adventurous, there's always Lasonic.