Digital downloads have made access to new music far easier. But for many music lovers, the sound quality is lacking when using a digital sound source – especially compared to its analogue counterpart. Berlin-based Tento Engineering develops high-end pocket-sized devices that turn digital data-flow into analogue signal without any perceptible lack of quality. Tento Engineering UG is a German start- up founded in 2013 that has specialised in high-end audio devices for people who love the sound of analogue music, who want to use their old but still high-end earphones or high-quality loudspeaker system combined with their digital music sources. This needs a precision digital-to-analogue converter (DAC), the key component, which generally determines the kind of sound the customer’s music assembly will perform.