Riwbox AC2
Sennheiser HDB 630
What Buyers Say
Riwbox AC2
The Riwbox Hybrid Active Noise Cancelling Headphones receive generally positive feedback for their sound quality, comfort, and battery life, with many users praising the value for money. However, a significant number of reviews mention issues such as high-pitched feedback or squealing after calls, connectivity problems, and poor customer support. While the noise cancellation and lightweight design are appreciated, durability concerns and inconsistent mic performance for calls are noted.
Pros
- Excellent noise cancellation
- Great sound quality for price
- Comfortable to wear
- Long battery life
- Lightweight design
Cons
- High-pitched feedback/squealing after calls
- Poor customer support
- Fuzzy sound quality in some units
- Connectivity issues
- Mic not ideal for long calls
Sennheiser HDB 630
The Sennheiser HDB 630 headphones are praised for their exceptional sound quality, delivering a clean, neutral, and detailed audio experience that rivals wired audiophile setups. Users highlight excellent comfort for long sessions, impressive battery life, and useful features like parametric EQ and crossfeed. While the ANC is decent but not class-leading, and the touch controls can be finicky, the overall sentiment is very positive, with many considering them a top choice for serious listeners.
Pros
- Exceptional sound quality
- Excellent comfort for long sessions
- Impressive battery life
- Useful parametric EQ and crossfeed
- Good build quality
Cons
- ANC not class-leading
- Touch controls can be finicky
- Plasticky build feel
- Plain aesthetics
- Double-tap ANC/transparency UX issue
Scores
Specifications
| Riwbox AC2 | Sennheiser HDB 630 | |
|---|---|---|
| Design | ||
| Form Factor | over-ear | over-ear |
| Open/Closed | — | closed |
| Foldable | ✓ | ✓ |
| Weight | 0.28 kg★ | 0.31 kg |
| Ear Cushion | protein | synthetic leatherette |
| Headband | — | Japanese leatherette |
| Audio | ||
| Driver Type | dynamic | dynamic |
| Driver Size | 40 mm | 42 mm★ |
| Drivers | — | 1★ |
| Freq Min | — | 6 Hz★ |
| Freq Max | — | 40 kHz★ |
| Impedance | 32 Ω | 480 Ω |
| Sensitivity | — | 105 dB★ |
| Hi-Res Audio | — | ✓★ |
| Codecs | Riwbox Hybrid Active Noise Cancelling Headphones, Wireless Over Ear Bluetooth Headset, 60H Playtime, High-Fidelity, Foldable, Comfort&Immersion for Work/Commuting (Blue) | aptX HD, aptX Adaptive |
| Surround | — | Sennheiser HDB 630 Wireless Over-Ear Headphones - Hi-Res Audiophile Sound, Adaptive Noise Cancellation, Parametric EQ, 60 Hour Battery Life, Includes USB-C Low-Latency Bluetooth Adapter - Black | Senn |
| Noise Control | ||
| ANC | ✓ | ✓ |
| ANC Type | hybrid | hybrid adaptive |
| Transparency | — | ✓★ |
| Connectivity | ||
| Wireless | ✓ | ✓ |
| Bluetooth | — | 5.2★ |
| Profiles | — | A2DP, AVRCP, HFP |
| Multipoint | — | ✓★ |
| Wired Connector | — | USB-C |
| Detachable Cable | — | ✓★ |
| Cable Length | — | 1.2000000476837158 m |
| Battery | ||
| Battery Life | 60 hrs | 60 hrs |
| Charge Time | — | 2 hrs★ |
| Fast Charging | — | 10 min for 7 hours playback |
| Charging | — | USB-C★ |
| Capacity | — | 700 mAh★ |
| Microphone | ||
| Microphone | — | ✓★ |
| Mic Count | — | 4★ |
| NC Mic | ✓ | ✓ |
| Boom Mic | — | ✗ |
| Detachable Mic | — | ✗ |
| Features | ||
| Voice Assistant | — | voice assistant |
| Touch Controls | — | ✓★ |
| App | — | Sennheiser Sound Control Plus |
| Volume Limiting | — | ✗ |
| Gaming Mode | — | ✓★ |
Pros & Cons
Riwbox AC2
- Strong battery (88th percentile)88th %ile
- Strong anc (85th percentile)85th %ile
- Strong comfort (80th percentile)80th %ile
- Strong social proof (69th percentile)
- Below average mic (15th percentile)15th %ile
- Below average user sentiment (22nd percentile)
- Below average connectivity (33rd percentile)
- Below average build (34th percentile)
Sennheiser HDB 630
- Strong connectivity (98th percentile)98th %ile
- Strong anc (98th percentile)98th %ile
- Strong sound (98th percentile)98th %ile
- Strong social proof (95th percentile)95th %ile
Verdict
Scores 100 overall, wins 7 of 7 usage categories and 17 of 41 specs.