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Audiobot Notes
Peak SPL

105.8 dB

This was approximated from the source output at 300 Ω

Damping factor
Sennheiser HD 660 S
Sennheiser HD 660 S
Impedance 150 Ω
Efficiency 95.8 dB SPL/mW
Frequency Response 10 - 41,000 Hz
Transducer Type Dynamic
Operating Principle Open
Ear Coupling Over-ear
Weight 260 g
Price History
Current $475.69
Highest $700.00
Lowest $475.69
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Power Output 80 mW at 300 Ω
Frequency Range 20 - 20,000 Hz
Portable
Price History
Current $259.00
Highest $520.00
Lowest $259.00
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