Sennheiser HD660S

"Hey look, Sennheiser fixed the HD700"

Review by Inner Fidelity

Technical Information:

Impedance: 150 Ohm

Sensitivity: 104dB/V

Amplifier requirement: Yes

Detachable Cable: Yes


Target Headphone Loudness: 110,0 dB Sound Pressure Level

Power Required: 26,54 Milliwatts

Voltage Required: 1,9953 Volts

Current Required: 13,30 Milliamps

Sennheiser HD660S Frequency Response

Fulle measurements from Inner Fidelity