Sennheiser HD 660S

• Sennheiser Audiophile Range
• New transducer system developed by Sennheiser
• Circumaural
• Open
• Dynamic
• Two-sided cable routing
• Maximum sound pressure level: 104 dB SPL @ 1 kHz, 1V RMS
• Impedance: 150 Ohm
• Frequency range: 10 - 41,000 Hz
• Distortion factor at 1 kHz < 0.4
• Weight: 260 g

Cables included:

• 3 m cable with 6.3 mm jack
• 3 m cable with 4.4 mm jack balanced
• Adapter cable 6.3 mm jack to 3.5 mm jack