While there are seemingly endless options of cheap earphones in the sub-£30 sector, what can you get The B400 sports four balanced armatures per earphone and costs £170. Is it worth the money?

In-ear buds, like those that come with almost every smartphone, are so small it's almost too easy to take them for granted. After all, how much can you cram into such a cramped space to produce good-quality audio? Just enough, if you ask audio...