Sennheiser introduces the HD 660S2 headphones, which can be regarded as the successor to the almost identical-looking HD 660S. An important innovation is the increase of the impedance. The new model has a suggested retail price of 599 euros.
A striking innovation is the fact that the driver of the HD 660S2 has an impedance of 300 ohms, while the 660S has 150 ohms. As a result, the new model requires an amplifier with a high power even more than its predecessor. This makes the new model less suitable for use in combination with a laptop or smartphone, for example.
Sennheiser calls the HD 660S2 an upgrade for audiophiles and says it has listened to feedback from the hi-fi community “creating a pair of headphones that strikes a successful balance between detail of reference level and an immersive frequency response’. The 660S in turn is the successor to better-known headphones such as the HD600 and HD650.
The Sennheiser HD 660S2 can be pre-ordered from Wednesday and will be available from February 21.
