Listening to hi-res audio with your regular old headphones would be like drinking the finest champagne through a sweaty sock. To truly appreciate what you’re experiencing you need to have a suitable delivery method, such as 1more’s H1707 (£200) - a champagne flute in a world of stained mugs. With a 40mm driver and bass reflex unit in each earcup, their frequency response of 20Hz - 40kHz means they can cope with the extra sounds hi-res audio files dig out. Just don’t try to drink champagne out of them. You’ll get sticky ears.