Sennheiser launched a HD 660S2 open-back dynamic headphone last week, with a starting price of 4199 CNY, and it is officially on sale today.
The headphones feature a lightweight aluminum voice coil with an impedance of 300 ohms for a clearer impulse response and less weight; a specially crafted precision transducer structure for better control of diaphragm movement; resonant frequency from 110 Hz Down to 70 Hz, the bass performance is greatly enhanced; the built-in powerful ventilation magnet system reduces sound distortion; it is equipped with velvet ear pads that are pleasant to the touch, and the open design is comfortable to wear for a long time.
Additionally, the HD 660S2 optimizes airflow control around the transducer, reducing air leakage between the front and rear of the transducer. This reduces the risk of acoustic short circuits and avoids reducing the sound pressure in the low frequency range.
According to reports, the subwoofer expansion of the Sennheiser HD 660S2 open-back dynamic headphone creates a wide-area space for the sound. Against the background of the deep bass, the treble is brighter, which strongly renders the emotion of the music. Attached is parameter table:
