Between the ATH-MSR7b and QuietComfort SC, the ATH-MSR7b comes out ahead in driver size, while the QuietComfort SC wins on weight and active noise cancellation. Overall, the ATH-MSR7b scores 66.2 and the QuietComfort SC scores 62.9 on our Mars Score.
Which should you buy?
The ATH-MSR7b edges ahead on the Mars Score (66.2 vs 62.9), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ATH-MSR7b if you care most about driver size. The biggest gaps in its favor are driver size.
Pick the QuietComfort SC if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, active noise cancellation, multipoint, among others.
Both ship with comparable spatial audio, ldac, water resistance, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Audio-Technica - ATH-MSR7b wins
- ▲Driver size — 28.57% more. 45 mm vs 35 mm.
Why Bose - QuietComfort SC wins
- ▲Weight — 50.00 g less. 240 vs 290.
- ▲Has Active noise cancellation.
- ▲Has Multipoint.
- ▲Battery life: 24 h vs 0 h.
Spec comparison
Design
| Spec | Audio-Technica - ATH-MSR7b | Bose - QuietComfort SC |
|---|---|---|
| Type | over-ear | over-ear |
| Weight | 290 g | 240 glead |
| Water resistance | none | none |
Audio
| Spec | Audio-Technica - ATH-MSR7b | Bose - QuietComfort SC |
|---|---|---|
| Driver sizeⓘ | 45 mmlead | 35 mm |
| Impedanceⓘ | 36 Ωlead | 32 Ω |
| Sensitivityⓘ | 101 dBlead | 98 dB |
| Active noise cancellationⓘ | false | truelead |
| Transparency mode | false | truelead |
| Spatial audioⓘ | false | false |
Battery
| Spec | Audio-Technica - ATH-MSR7b | Bose - QuietComfort SC |
|---|---|---|
| Battery life | 0 h | 24 hlead |
| Fast chargeⓘ | false | truelead |
Connectivity
| Spec | Audio-Technica - ATH-MSR7b | Bose - QuietComfort SC |
|---|---|---|
| Bluetoothⓘ | 0.0 | 5.1lead |
| Multipointⓘ | false | truelead |
| 3.5mm jack | true | true |
| LDACⓘ | false | false |
| aptX HDⓘ | false | false |
Frequently asked
Which has better battery life, ATH-MSR7b or QuietComfort SC?+
QuietComfort SC lasts 24 hours vs 0 hours.
Do ATH-MSR7b or QuietComfort SC have active noise cancellation?+
QuietComfort SC has ANC; ATH-MSR7b does not.
Which supports LDAC, ATH-MSR7b or QuietComfort SC?+
Neither supports LDAC.
Spec-level deep dives
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