Few things are as hated and necessary as taxes and subwoofers. But subwoofers, at least, are becoming easier to live with. Ten years ago, every good-sounding subwoofer took the form of a massive, ugly black box. Given the science of the time, the big box was necessary if you wanted deep bass. But thanks to a technological breakthrough or two, you can now buy an excellent miniature subwoofer that takes up less than a cubic foot of space.



