Astell&kern Kann Alpha £1,099

A veritable multi-tool for hi-res streaming, this luxurious portable music player and its dual ESS Sabre ES9066AS DAC has enough power to drive high-impedance headphones, can play from 33 different music services and streams to compatible wireless headphones using aptx HD. Plugged into your computer, it becomes a seriously accomplished standalone headphone amp, bursting with detail, clarity and enthusiasm. astellkern.co.uk