Sennheiser HD 660S2
JBL Tune 670NC
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
JBL Tune 670NC
Most users love these JBL headphones, praising excellent sound quality, effective noise cancellation, comfortable fit, and long battery life—many report great value for the price. One reviewer had a defective unit with no sound in one ear. A few users appreciate the easy controls, foldable design, and app connectivity. Overall, sentiment is strongly positive with a minor quality control concern.
Pros
- Excellent sound quality
- Effective noise cancellation
- Long battery life
- Comfortable fit
- Great value for price
Cons
- Potential defective unit (no sound in one ear)
- No answers to Q&A questions
Scores
Specifications
| Sennheiser HD 660S2 | JBL Tune 670NC | |
|---|---|---|
| Design | ||
| Form Factor | over-ear | on-ear |
| Open/Closed | open | closed |
| Foldable | ✗ | ✓★ |
| Weight | 0.50 kg | 0.17 kg★ |
| Ear Cushion | velour | soft ear cushions |
| Headband | Aluminum, Plastic, Steel | padded headband |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 38 mm★ | 32 mm |
| Drivers | — | 1★ |
| Freq Min | 8 Hz★ | 20 Hz |
| Freq Max | 42 kHz★ | 20 kHz |
| Impedance | 300 Ω | 32 Ω |
| Sensitivity | 104 dB★ | 98 dB |
| Max SPL | — | 95 dB★ |
| Hi-Res Audio | — | ✗ |
| Codecs | — | SBC, AAC, LC3 |
| Noise Control | ||
| ANC | ✗ | ✓★ |
| ANC Type | — | adaptive |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | ✗ | ✓★ |
| Bluetooth | — | 5.3★ |
| Profiles | — | A2DP 1.4, AVRCP, HFP 1.8 |
| Multipoint | — | ✓★ |
| Wired Connector | 6.35mm | 3.5mm |
| Detachable Cable | ✓ | ✓ |
| Cable Length | 1.7999999523162842 m | 1.2192000150680542 m |
| Battery | ||
| Battery Life | — | 70 hrs★ |
| Charge Time | — | 2 hrs★ |
| Fast Charging | — | 5min=3hrs |
| Charging | — | USB-C★ |
| Capacity | — | 690 mAh★ |
| Microphone | ||
| Microphone | — | ✓★ |
| Mic Count | — | 1★ |
| NC Mic | — | ✓★ |
| Boom Mic | ✗ | ✗ |
| Features | ||
| Voice Assistant | — | voice assistant |
| Touch Controls | — | ✗ |
| App | — | JBL Headphones |
| 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)
JBL Tune 670NC
- Strong connectivity (99th percentile)99th %ile
- Strong social proof (99th percentile)99th %ile
- Strong anc (98th percentile)98th %ile
- Strong battery (94th percentile)94th %ile
Pricing
JBL Tune 670NC offers 9.2x better value for money
Verdict
Scores 90 overall, wins 6 of 7 usage categories and 17 of 39 specs.
