Seventy-three years young, Sennheiser has long dominated the hi-fi headphone market – and the new HD 660 S shows just why. This modern rework of a classic open-back design is fashioned with great care, using hand-selected transducers and sturdy detachable cables. The earpads and headband feature thick padding and the HD 660 S is very comfortable to wear for extended periods. Moreover, it is hard not to like its warm, laid-back and friendly sound which bests the performance of many ’phones at twice the price. It’s a fine choice for home hi-fi enthusiasts, especially when treated to a high quality source.