Over-Ear
KEF Mu3
72Good
$250
Full review dataKEF Mu3 vs Sennheiser HD 650: which should you buy?
On aggregated review scores the Sennheiser HD 650 comes out ahead with an HearWiki score of 85. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Sennheiser HD 650 - Outstanding overall at around $380.
Over-Ear
Sennheiser HD 650
85Outstanding
$380
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KEF Mu3
Sound8.0
Noise cancelling6.0
Battery7.0
Calls5.0
Value7.0
Sennheiser HD 650
Sound9.0
Value7.5
Specifications
| Spec | KEF Mu3 | Sennheiser HD 650 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $250 | $380 |
| HearWiki score | 72 / 100 · Good | 85 / 100 · Outstanding |
| Released | 2021 | - |
| Audio | ||
| Driver | dynamic | dynamic |
| Driver size | 8.2 mm | 42 mm |
| Drivers per side | 1 | 2 |
| Frequency response | 20Hz-20kHz | 10Hz-41kHz |
| Impedance | 16 Ω | 300 Ω |
| Sensitivity | 104 dB/mW | 99.8 dB/mW |
| Sensitivity (dB/Vrms) | - | 103 |
| Wireless | ||
| Bluetooth | 5.0 | - |
| Bluetooth version | 5.0 | - |
| Codecs | SBC, AAC | - |
| Multipoint pairing | No | No |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life (ANC on) | 9 h | - |
| Battery incl. case | 24 h | - |
| Quick charge | 5 min = 1 h | - |
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | Yes | No |
| ANC type | adaptive | - |
| Transparency mode | Yes | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | touch | buttons |
| Design | ||
| Weight | 5.8 g | 260 g |
| Case weight | 46.8 g | - |
| Water resistance | none | - |
| Foldable | - | No |
| Detachable cable | - | Yes |
| USB-C | Yes | No |
| Balanced connection | - | Yes |
What reviewers said
KEF Mu3
The KEF Mu3 wireless earbuds deliver a balanced, natural sound profile that suits both music and spoken content, wrapped in a comfortable and elegant design. They offer solid battery life with rapid charging, but their feature set is lean, lacking extras like aptX, multipoint, or app support. Noise cancellation and transparency are functional but not top-tier, making these a better pick for audio purists than feature hunters.
- Pro:Balanced, pleasant sound signature
- Pro:Comfortable and stylish build
- Pro:Good battery life with quick charge
- Con:No aptX or multipoint support
- Con:Mediocre ANC and transparency
- Con:Lacks app and EQ customization
Sennheiser HD 650
The Sennheiser HD 650 is a wired, open-back dynamic headphone built for serious home listening. It delivers a natural, detailed sound with a comfortable fit, though its sub-bass rolloff and bulky design limit it to stationary use rather than portable or active scenarios. Its replaceable cable and balanced connection option add to its appeal for audiophiles.
- Pro:Excellent clarity and natural tonal balance
- Pro:Very comfortable for long listening sessions
- Pro:Detachable cable and balanced output support
- Con:Noticeable sub-bass rolloff
- Con:Not portable or suitable for active use
- Con:High impedance requires a dedicated amplifier
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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