Τα Sennheiser HD-660S2 ειναι audiophile over ear ακουστικα, ανοικτου τυπου. Αντισταση 300Ωμ.
Εγγυηση Αντιπροσωπειας. Δυνατοτητα δοσεων.
Features
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    Uniquely powerful vented magnet system for minimized distortion 
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    Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response 
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    Intimate sound with great timbre and deep, accurate sub bass 
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    Plush ear cushions and open design for maximum comfort 
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    Outstanding quality designed in Germany, made in Ireland 
Specifications
    - Transducer principle dynamic, open
- Transducer size 38 mm
- Frequency response 8 – 41,500 Hz
- Impedance 300 Ω
- Sound pressure level (SPL) 104 dB (1 kHz, 1 Vrms)
- Total harmonic distortion (THD) <0.04% (1 kHz, 100 dB)
- Ear coupling Over-Ear
- Weight 260g
- Adapter 6.3 mm (1⁄4 inch) to 3.5 mm
- Connector 6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
- Cable length 1.8m
- Country of origin Ireland
- Magnetic field 4.5mT