David Shapton on why vinyl is not the only game in town when it comes to vintage audio formats. Nobody could have missed the revival of vinyl records. It’s way more than just a fad—it’s a movement.

The new PD20 from Astell&Kern is billed as the first Digital Audio Player to tailor sound to a listener's hearing – transforming how music is individually experienced.

Let's start off with the definition of sound. Sound is the vibrations of air that stimulate the ear to produce a signal in your brain. And it's these reconstructed vibrations—transformed into neural ...