Car´s subwoofer hissing? No problem. Replace this boomer´s voice coil, and it´s good as new

by Jeff Harris Jeff Harris

Your kid borrows the car, blasts too many techno tracks, and blows out the subwoofer. It used to be that you´d have two choices: Buy a new one (woofer, not kid) or put up with a hoarse bass line. But when a subwoofer pops, it´s usually only the voice coil-the part that drives the cone-that´s burned out; the rest of the assembly is just fine. Boston Acoustics´s SPG555 subwoofer is the first with a replaceable voice coil that you can install yourself. Simply undo six screws around the coil´s cap, swap the fried coil for a new one, and get back to booming. The sub is driven by powerful, hockey-puck-size neodymium magnets, making it half the size and weight of similar units using ferrite magnets, so you won´t have to choose between trunk space and heavy-hitting bass.

Boston Acoustics SPG555


Weight: 26 lbs.


Size: 11.9 x 14.3 x
8.3 in.


Frequency: 20 to 350 Hz


Power: 1,000 watts


Price: $700;
$70 for a new voice coil


Get it: bostonacoustics.com

0 Comments


138 years of Popular Science at your fingertips.

Innovation Challenges



Popular Science+ For iPad

Each issue has been completely reimagined for your iPad. See our amazing new vision for magazines that goes far beyond the printed page



Download Our App

Stay up to date on the latest news of the future of science and technology from your iPhone or Android phone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed


February 2012: The Future of Fun

Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?


circ-top-header.gif
circ-cover.gif