The wireless sub (sold separately) isn’t nearly as petite. It’s basically a big 1-foot black plastic cube with rounded corners, though it does have a similar elegant, apparently sturdy, black glass top on it. It’s tall enough that I’m tempted to set my drinks on it as I sit on the couch, but have yet to build up the courage. It seems sturdy, but there’s no telling what a cup of spilled hot coffee might do to the poor thing. I’ve also been eyeing it nervously because my first Acoustimass 300 subwoofer would not sync to the soundbar properly. Bose had to ship me a replacement, which works fine (though, it's worth noting that a few other buyers have complained about this).
On the back of the SoundTouch are the ports you’ll need: an HDMI input and output for ARC connections, an optical cable for more traditional setups, an ethernet port (it has Wi-Fi too), a 3.5mm jack to hardwire a sub if you desire, a Micro USB slot, and an extra 3.5mm port so you can customize your room’s audio with using Bose’s Adaptiq audio tuning.
Also in the box is a rather bulky, complex universal remote control, which Bose says can control your TV and other devices, though it’s about as intuitive as one of those hideous Comcast cable box remotes. Keep the instruction manual handy if you want to do anything special with this one. I’m sure it has a lot of functions, but the control codes Bose provided didn’t work with my Panasonic HDTV and it doesn’t seem useful for a whole lot more. Still, you can’t fully avoid it. There are no controls on the front of the SoundTouch, just five status indicator lights. The lack of on-device control is frustrating, though the optional Bose app does help.
The app looks a lot like the Sonos app, though it’s not nearly as robust. It lets you directly connect to Spotify and a few other music services. Spotify even works from the music service’s app. Firmware updates are easily downloaded using the app, and it’s nice that Bose continues to issue security and feature updates well into 2018.
If you own an Amazon Alexa speaker, you can add the Bose Skill to the SoundTouch and play audio through your soundbar, sort of. Alexa can play "presets" that you create by hand in the music section of the Bose app. It's a step in the right direction, but far more cumbersome than it's worth. I tended to just play music directly from the Spotify or Bose app because it was easier. Smart speaker compatibility is quickly becoming a feature most soundbars will have. The SoundTouch takes a baby step toward it.
Touched By Sound
Hidden behind the grill of the SoundTouch 300 are four full-range drivers, a tweeter in the center, and PhaseGuide arrays that help aim sound out the sides to fill your room more, though you can buy Bose satellite surround speakers for a full home theater setup if you wish. I found the soundbar to sound good on its own, but even better after calibrating it with the wired Adaptiq headband.
The process makes you sit in five different seating positions in your room and then picks up tones from the soundbar, tuning it in the process. The instructions were somewhat confusing, like a lot of the setup of this speaker (partially due to that clumsy big remote), but after tuning, I did notice sound spreading a few feet out from either side of the soundbar, depending on my seat.