Sennheiser’s updated HD 660S2 responds to hi-fi community feedback, crafting a headphone that skillfully balances reference-level detail with engaging frequency response, it says here.
Sennheiser product manager Jermo Koehnke puts it thus: “The new HD 660S2 offers listeners what they requested most from the headphones’ predecessor. With precision and power like no other and new sensitivity across all frequencies, listeners will hear details they’ve never heard before, especially at the lower end of the spectrum.”
Designed in Germany and manufactured in Ireland, the HD 660S2 continues the series’ plush earpads and cushy headband padding place the revised 300-ohm transducers at the optimal distance from the ear. The transducer surround drops the resonant frequency from 110 Hz (original HD 660S) down to 70 Hz for hefty kick drums that move with ease. Even the outer mesh grilles are crafted to manage airflow at the ideal impedance.
The HD 660S2 ships with two 1.8 meter (5.8 ft) user-detachable cables that terminate to 6.3 mm (1/4-inch) single-ended stereo and 4.4 mm balanced stereo jack plugs, respectively. A 6.3 mm to 3.5 mm (1/8-inch) adapter is also included. Distinguishing bronze accents complement the elegant jet-black finish, all of which is protected by a storage pouch. The Sennheiser HD 660S2 will go on sale 21st February with an RRP of £499 / €599.