Based on the reviews from PCMag, Digital Trends, HomeTheaterHiFi, What Hi-Fi?, and SoundGuys, here’s a comparative table rating various attributes of the Sennheiser HD 660S2 headphones on a scale of 1 to 5:
| Attribute | PCMag | Digital Trends | HomeTheaterHiFi | What Hi-Fi? | SoundGuys |
| Sound Quality | 4 | 4.5 | 4.5 | 3.5 | 4.5 |
| Bass Response | 4 | 4.5 | 4.5 | 3 | 4 |
| Comfort | 4 | 4 | 4 | – | 4 |
| Build Quality | – | 4 | 4.5 | – | – |
| Design & Aesthetics | – | 3.5 | 3.5 | – | – |
| Value for Money | 4 | – | 4 | – | – |
| Overall Experience | 4 | 4.5 | 4.5 | 3.5 | 4.5 |
Detailed Summary:
- PCMag: Rated 4/5, PCMag praises the spacious, neutral-leaning listening experience and bass depth.
- Digital Trends: Offers detailed and dynamic sound with excellent bass response and comfort, but notes cons like no protective case and clamping force.
- HomeTheaterHiFi: Recognizes quality build, deep bass, and comfortable design, but points out slight pressure on the head and need for better documentation.
- What Hi-Fi?: Highlights the smooth sound but notes limitations in handling bass-heavy tracks.
- SoundGuys: Focuses on refined sound, evolved neutral profile, and comfort with cleaner bass.