Sennheiser HD 660S2 headphone, wired, over ear, open back, dynamic. frequency range: 8 Hz – 41,5 kHz. impedance: 300 Ohm. sound pressure level: 104 dB (1V). driver size: 38mm. total harmonc distortion:
Sennheiser HD 660S2
SOUND
QUALITY
FEATURES
VALUE FOR MONEY
EASE OF USE
4.6