Over-Ear
Sennheiser HDB 630
86Outstanding
$450
Full review dataSennheiser HDB 630 vs Ultrasone Signature MASTER MkII: which should you buy?
Specs, scores and condensed review verdicts for the Sennheiser HDB 630 vs Ultrasone Signature MASTER MkII, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
Ultrasone Signature MASTER MkII
Not yet scored
$700
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Sennheiser HDB 630 leads on 7 of 7 measures.
- Sennheiser HDB 630
- Ultrasone Signature MASTER MkII
HearWiki score
86
-
Sound
9.4
-
Noise cancelling
8.2
-
Battery
9.7
-
Calls
8.5
-
Value
8.4
-
Price (USD)
$450
$700
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Half a step newer
Sennheiser HDB 630 (2025) against Ultrasone Signature MASTER MkII (2024). The Sennheiser HDB 630 edges ahead on platform, but only just: ANC type Adaptive against None. It also adds USB-C, Wear detection, Transparency mode and Custom EQ.
- HDB 63020251 yr newer
- Signature MASTER MkII2024
What differsHDB 630Signature MASTER MkII
- ANC type
- Adaptive
- None
- USB-C
- Yes
- No
- Wear detection
- Yes
- No
- Transparency mode
- Yes
- No
- Custom EQ
- Yes
- No
- Companion app
- Yes
- No
Platform
Everyday features
Specifications
HDB 630Signature MASTER MkII
- Type
- Over-Ear
- Over-Ear
- Price (USD)
- $450
- $700
- HearWiki score
- 86
- Not scored
- Released
- 2025
- 2024
- Availability
- Sold new
- Discontinued
- Driver
- 42 mm dynamic
- 2× 40 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver size
- 42 mm
- 40 mm
- Drivers per side
- 1
- 2
- Frequency response
- 6 Hz - 40 kHz
- 6 Hz - 42 kHz
- Sound signature
- neutral
- -
- Impedance
- 480 Ω
- 32 Ω
- Sensitivity
- 105 dB/mW
- 103 dB/mW
- Bluetooth
- 5.2
- -
- Codecs
- SBC, AAC, aptX, aptX HD, aptX Adaptive
- -
- Multipoint pairing
- Yes
- -
- Battery life
- 60 h
- -
- Battery life (ANC on)
- 60 h
- -
- Full charge time
- 120 min
- -
- Quick charge
- 10 min → 7 h
- -
- Wireless charging
- No
- -
- Active noise cancelling
- Yes
- No
- ANC type
- adaptive
- none
- Transparency mode
- Yes
- No
- Companion app
- Yes
- No
- Custom EQ
- Yes
- No
- Wear detection
- Yes
- No
- Controls
- touch
- none
- Voice assistant
- Yes
- No
- Weight
- 311 g
- 286 g
- Water resistance
- none
- -
- Foldable
- -
- Yes
- Detachable cable
- Yes
- Yes
- USB-C
- Yes
- No
- Connector
- 3.5 mm
- 2.5 mm balanced
- Balanced connection
- -
- Yes
- Model code
- -
- 17 0131 SM2
- Microphones
- 4
- -
- Call noise reduction
- -
- No
What reviewers said
Sennheiser HDB 630
The Sennheiser HDB 630 is a premium wireless over-ear headphone that prioritizes audio fidelity above all else, pairing a detailed 42 mm driver with adaptive noise cancellation and extensive aptX codec support. Its standout feature is the bundled BTD 700 dongle, which unlocks high-resolution wireless performance, while a long 60-hour battery life and comfortable fit make it suitable for extended listening sessions. Though it lacks water resistance and wireless charging, its balanced tuning and engaging sound make it a top choice for audiophiles on the go.
- Pro:Excellent, balanced sound quality
- Pro:Adaptive ANC with strong performance
- Pro:Support for aptX Adaptive and aptX HD
- Con:No water resistance
- Con:No wireless charging
- Con:Some noticeable sonic quirks in certain settings
Ultrasone Signature MASTER MkII
No summary yet - we haven't aggregated enough reviews.
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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