Like landlines, calculators or movie listings in the newspaper, physical stereos have been replaced by Spotify queues, iTunes libraries and Pandora stations. But that doesn't mean you don't want the style and sound a bookshelf system once provided. And whether you prefer your speakers wired or not, you'd ideally be able to bring the sound with you wherever you took your iPad or laptop. We recently put a few of the latest options to the test. Some sounded better than others. Some looked sillier than others. Herewith, the four best sounding speakers you'd also be proud to have in your home or office.
The scientific study of human sound perception is known as psychoacoustics.