Sennheiser HD 650

Sennheiser HD 660 S

Manufacturer: Sennheiser Sennheiser
Model: HD 650 HD 660 S
Popularity: #5 #10
Impedance: 320 Ω 150 Ω
Efficiency: 98.5 dB SPL/mW 95.8 dB SPL/mW
Frequency Response: 10 - 39,500 Hz 10 - 41,000 Hz
Transducer Type: Dynamic Dynamic
Operating Principle: Open Open
Ear Coupling: Over-ear Over-ear
Weight: 260 g 260 g
Discontinued:
Current Price: $369.93 $489.99