Sennheiser HD 660S

Full Analysis

The Sennheiser HD 660S is a Open-Back Headphones product from Sennheiser. Sennheiser electronic SE & Co. KG is a German audio equipment manufacturer headquartered in Wedemark. Sennheiser specializes in equipment for the professional audio markets, including microphones, headphones, and loudspeakers. Sennheiser's professional audio division continues to produce for live music, studio, broadcast, video, and film production, as well as spatial audio and AR/VR/XR. The professional audio division also produces solutions for business communication, such as presentations, conferences, meetings, visitor guidance, hearing support, and the education sector. The company manufactures wireless microphones; aviation, multimedia and gaming headsets; micro-Hifi systems; conferencing systems; speakers; amplifiers, and high-end audiophile headphones like the HD 800 S and Orpheus. Sennheiser's consumer audio division was acquired by Sonova Holding AG in May 2021. The noise cancelling handles low-frequency rumble like engine noise better than it handles chatter. Call quality on the built-in microphones is clear enough for most meetings without an external mic. Our editorial team scores it 3.3/5 based on typical specs, feature set, and price-to-value for this category, alongside 241 community ratings, making it an adequate option if the price fits your budget within headphones.

Our Verdict

At approximately $272, the Sennheiser HD 660S lands as an adequate option if the price fits your budget. If easy to set up out of the box matters most to you, it is worth shortlisting alongside other open-back headphones.