Pair Headphones with Amps
Compare Headphones
Audiobot Notes
Peak SPL

119.9 dB

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 $499.95
Highest $700.00
Lowest $499.95
Search Item
Buy from Sennheiser
Similar Headphones
Sennheiser HD 700
AKG K 702
AKG K 712 Pro
AKG K 7XX
AKG K 612 Pro
HiFiMAN EF-2A
HiFiMAN EF-2A
Type Tube
Power Output 256 mW at 150 Ω
320 mW at 32 Ω
Frequency Range 20 - 20,000 Hz
Portable
Price History
Current $168.95
Highest $601.25
Lowest $168.95
Search Item