Sennheiser HD 660S2
Bose QuietComfort 884367-1100
What Buyers Say
Sennheiser HD 660S2
The Sennheiser HD 660S2 is praised as a significant upgrade over its predecessor, with improved bass and a warm, organic sound signature. Users highlight its excellent midrange realism, wide soundstage, and comfort, though they note it requires a dedicated amp and DAC to reach full potential. Overall, it is considered a top-tier choice for audiophiles seeking detailed, fatigue-free listening.
Pros
- Improved bass over predecessor
- Warm and organic sound signature
- Excellent midrange realism
- Wide soundstage
- Comfortable and lightweight
Cons
- Requires dedicated amp and DAC
- High impedance (300 ohms)
- Open-back design leaks sound
- Pricey investment
Bose QuietComfort 884367-1100
The Bose QuietComfort headphones are overwhelmingly praised for their exceptional noise cancellation, comfort, and sound quality. Users love the immersive audio, deep bass, and long battery life, often describing the noise cancellation as creating a personal peace bubble. Some minor criticisms include occasional connection issues, limited app features, and that the volume could be higher for some, but overall satisfaction is very high.
Pros
- Exceptional noise cancellation
- Superb comfort and lightweight design
- Crystal clear sound with deep bass
- Long battery life (over 20 hours)
- Seamless connectivity with Apple/Android
Cons
- Occasional connectivity drops
- Volume not loud enough for some
- App lacks equalizer feature
- Audio leaks at high volume
- Limited awareness modes (only Aware and Quiet)
Scores
Specifications
| Sennheiser HD 660S2 | Bose QuietComfort 884367-1100 | |
|---|---|---|
| Design | ||
| Form Factor | over-ear | over-ear |
| Open/Closed | open | closed |
| Foldable | ✗ | ✓★ |
| Weight | 0.50 kg | 0.24 kg★ |
| Ear Cushion | velour | Protein Leather |
| Headband | Aluminum, Plastic, Steel | Metal, Plastic |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 38 mm★ | — |
| Freq Min | 8 Hz | 5 Hz★ |
| Freq Max | 42 kHz★ | 40 kHz |
| Impedance | 300 Ω | 32 Ω |
| Sensitivity | 104 dB★ | — |
| Hi-Res Audio | — | ✗ |
| Codecs | — | Bose QuietComfort Headphones - Wireless Bluetooth Headphones, Active Over Ear Noise Cancelling and Mic, USB-C Charging, Deep Bass, Up to 24 Hours of Playtime, Sandstone |
| Surround | — | Bose QuietComfort Headphones - Wireless Bluetooth Headphones, Active Over Ear Noise Cancelling and Mic, USB-C Charging, Deep Bass, Up to 24 Hours of Playtime, Sandstone | Bose QuietComfort Headphones |
| Noise Control | ||
| ANC | ✗ | ✓★ |
| ANC Type | — | Active Noise Cancelling |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | ✗ | ✓★ |
| Bluetooth | — | 5.1★ |
| Multipoint | — | ✓★ |
| Wired Connector | 6.35mm | 2.5mm |
| Detachable Cable | ✓ | ✓ |
| Cable Length | 1.7999999523162842 m | 0.30000001192092896 m |
| Range | — | 9.100000381469727 m★ |
| Battery | ||
| Battery Life | — | 24 hrs★ |
| Charge Time | — | 2.5 hrs★ |
| Fast Charging | — | 15-minute boost gives your Bluetooth headphones up to 2.5 hours of play time |
| Charging | — | USB-C★ |
| Microphone | ||
| Microphone | — | ✓★ |
| NC Mic | — | ✓★ |
| Boom Mic | ✗ | ✗ |
| Features | ||
| Voice Assistant | — | Siri, Google Assistant |
| App | — | Bose app |
| Gaming Mode | — | ✗ |
Pros & Cons
Sennheiser HD 660S2
- Strong user sentiment (99th percentile)99th %ile
- Strong build (95th percentile)95th %ile
- Strong social proof (92nd percentile)92nd %ile
- Strong sound (81st percentile)81st %ile
- Below average comfort (10th percentile)10th %ile
- Below average mic (16th percentile)16th %ile
- Below average anc (32nd percentile)
Bose QuietComfort 884367-1100
- Strong connectivity (94th percentile)94th %ile
- Strong build (91st percentile)91st %ile
- Strong anc (90th percentile)90th %ile
- Strong social proof (89th percentile)89th %ile
Pricing
Bose QuietComfort 884367-1100 offers 2.2x better value for money
Verdict
Scores 87 overall, wins 5 of 7 usage categories and 14 of 35 specs.
