Bose QuietComfort 45 vs Sennheiser HD 660S2
Verdict
Our overall take, at a glance
Key takeaways
- Bose QuietComfort 45 leads Sennheiser HD 660S2 overall by 46 points (82 vs 36 out of 100).
- Bose QuietComfort 45 stands out on Comfort & Build Weight: 240 g.
Bose QuietComfort 45 leads overall
$329 at launch
Bose QuietComfort 45
82
Sennheiser HD 660S2
36
Why it stands out
- Comfort & Build Weight: 240 g
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.
Bose QuietComfort 45
The Bose QuietComfort 45 is a pair of over-ear, active noise-canceling headphones designed primarily for commuters and frequent travelers. They serve as a successor in Bose's well-established line of portable audio gear, focusing heavily on physical comfort and ambient noise isolation.
Best for blocking out persistent background rumble during flights and daily commutesBest for extended listening sessions where a lightweight fit and low clamping force are n
Pros
- Highly effective active noise cancellation capable of isolating ambient environmental sound
- Lightweight and folding physical design that ensures long-term wearing comfort
- Tactile physical button controls that offer reliable, physical feedback over touch-sensitive alternatives
Cons
- Face stiff market competition from both newer releases and prominent rivals in the same segment
Sennheiser HD 660S2
The Sennheiser HD 660S2 is a reference headphone model known for its clear, detailed, and warm sound signature. The design includes rich black velour earpads, and the headphones are noted for being lightweight. It provides impressive vocal clarity in the midrange.
Best for vocal trackingBest for classical musicBest for rock
Pros
- Features a fuller and warmer bass response than the original HD 660S
- The sound is described as clear, crisp, and detailed without sounding overly analytical
- Provides excellent detail and separation, with vocals prominently featured
- Is noted for being comfortable for long listening sessions due to light weight and earpads
Cons
- Can have a rather tight clamping force out of the box
- May not be suitable for genres requiring extremely thunderous bass (e.g., EDM or rap)
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
Bose QuietComfort 45
Sennheiser HD 660S2
Physical Comparison
Weight, side by side
Bose QuietComfort 45Sennheiser HD 660S2
Sennheiser HD 660S2 is 20 g (8%) heavier than Bose QuietComfort 45.
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Detailed Specifications
The full spec sheet, side by side