Sennheiser HD 660s Audiophile Headphones - Discontinued xlr-3 female 4mm balanced output: 9 hours

4mm balanced output: 9 hours Volume 29 Gain super high

0 standard and benefit from iFi’s Active Noise Cancelling technology to remove distortion from the audio signal

Bathys features refined materials such as a real leather and microfiber headband

full dynamics

watch videos

Sennheiser HD 660s Audiophile Headphones - Discontinued xlr-3 female 4mm balanced output: 9 hoursHD 660S The perfect blend of power and control. The powerhouse open back headphone Connects you to the deepest corners of your music collection. Hi fidelity sound Open back design 42mm transducers Luxurious comfort Detachable cable A Direct Connection To Your Music Known for their engaging signatures and liquid smooth response, HD 660S predecessors HD 650 and HD 600 shattered performance barriers in the audiophile headphone category. The HD 660S