TwelveSouth, a firm specializing in Mac-oriented periphs and gadgets, has created an ingenious solution for the traveling audiophile: a subwoofer that creates good to very good results out of your tinny MacBook Pro speakers. Powered by a simple USB adaptor, this 5×5-inch box boosts not just bass but overall tone, mood and presence. It makes for very satisfying listening to even the most raucous noise you can throw at it, and gives symphonic heft to quieter music you didn’t realize needed it. Installation is anxiety-free: plug in the speaker, download the software, and kick off your favorite Bonham thump. The preference interface allows tweaking for different equalization settings, including a custom fix. Turn it up. Yeah, now there’s why bassist become bassists: they understand that to move the room, you need to shake some BOTTOM… (more to come)