In 1978, Dr. Amar G. Bose, founder of Bose Corporation, sketched the basic concept of noise-cancelling technology on the spot during a transatlantic flight when he became frustrated that aircraft headphones’ sound quality was severely degraded by engine noise 1. This inspiration initially bore fruit as a professional solution for the aviation industry, providing hearing protection and clear communication for pilots 1. Then in 2000, Bose released this revolutionary technology to general consumers with the original QuietComfort (QC) headphones. By doing so, the company didn’t merely enter the market—it created and defined an entirely new category: active noise-cancelling (ANC) headphones 2.
Since then, the QuietComfort series has established itself as synonymous with silence. On October 19, 2023, the latest flagship model in this illustrious lineage, the “Bose QuietComfort Ultra Headphones,” arrived in the Japanese market 4. The word “Ultra” in its name suggests not just another model change, but a quantum leap in performance. However, today’s premium headphone market is a battleground more intensely competitive than ever before, crowded with sophisticated rival products.
The central question of this report is to thoroughly examine whether this “Ultra” model has achieved genuine evolution worthy of its name and ¥59,400 retail price, or if it remains merely an incremental update 4. The legacy of silence that Bose has built represents both a powerful brand asset and a heavy burden of expectations placed on new products. Can this product prove that Bose remains the category leader, or is it transforming into a legacy brand relying on past glory? We will uncover its true worth from the rigorous perspective of audiophiles.
Related Articles
Sony WH-1000XM6 Review: Redefining Silence, or the Perfection of Harmony
The pinnacle of Sony's noise-canceling headphones, the WH-1000XM6. Industry-leading silence achieved through the newly developed HD Noise Canceling Processor QN3 and 12-mic array. From the return of foldable design to 30-hour battery life and high-quality LDAC playback, a comprehensive analysis of the perfected form for modern musical lifestyles.
Chapter One: Exploring Design and Build Quality
A product’s physical characteristics form the foundation of the user experience. In this chapter, we examine the material selection, ergonomics, operability, and long-term durability of the Bose QuietComfort Ultra Headphones, comparing marketing claims with actual user reports to reveal the reality.
Table 1: Bose QuietComfort Ultra Headphones - Key Technical Specifications
| Item | Specification |
|---|---|
| Dimensions/Weight | Headphones: H 19.5 cm x W 13.9 cm x D 5.08 cm (0.25 kg) |
| Carrying case: H 21.1 cm x W 15.7 cm x D 6.1 cm (0.2 kg) | |
| Materials | Aluminum, protein leather, plastic |
| Connectivity | Bluetooth 5.3, multipoint connection, 2.5 mm - 3.5 mm audio cable |
| Supported Codecs | SBC, AAC, aptX Adaptive (Snapdragon Sound certified) 8 |
| Battery Life | Up to 24 hours (ANC on), up to 18 hours (Immersive Audio on) |
| Charging | USB-C, full charge approximately 3 hours, 15-minute quick charge for up to 2.5 hours playback |
| Controls | Touch strip (volume/shortcuts), physical buttons (power/mode/multifunction) |
| Microphone System | 12-microphone array 11 |
| Japan Release Date | October 19, 2023 4 |
| Suggested Retail Price | ¥59,400 (tax included) 4 |
| Source: 10 |
1.1 Materials and Ergonomics
Bose characterizes this product with “luxurious materials” and “refined design” 10. When held, the smooth aluminum arms and protein leather cushions that gently embrace the ears support these claims. The lightweight design of 253g is an important factor in maintaining comfort during extended listening sessions 8. The around-ear (circumaural) design enhances physical sound isolation by covering the entire ear while distributing pressure evenly through the headband, inheriting the legendary comfort that past QuietComfort models have built 11.
1.2 Operability and Interface
The control system employs a hybrid system combining physical buttons and capacitive touch controls. The right ear cup houses the power/Bluetooth button, mode switching button, and a multifunction button responsible for playback/pause and call answering. Additionally, the ear cup rim features a capacitive touch strip for volume adjustment and customizable shortcuts 10. While this system is intuitive, some users have pointed out that the touch strip’s tactile feedback is poor, making precise volume adjustment difficult 14. The product also includes wear detection that automatically plays/pauses when the headphones are put on or removed, enhancing daily convenience 10.
1.3 Build Quality and Durability Concerns
Despite the premium pricing and material selection, there are significant concerns with this product. Multiple user reports indicate problems with ear cup durability. Specifically, seams in the protein leather ear cushions have been frequently reported to tear within months despite careful use 16.
The root cause of this problem likely lies in manufacturing choices. According to user analysis, rather than stitching used in most headphones, seams are processed through adhesion, making them vulnerable to body heat and moisture 17. This design decision may have prioritized cost reduction or aesthetic appeal but severely undermines the product’s long-term reliability.
Fortunately, ear cushions are user-replaceable, and Bose sells official replacement parts 4. While this is commendable in terms of repairability, it simultaneously suggests that early deterioration of this component may be anticipated as part of the product lifecycle, which is not entirely reassuring. This fundamental contradiction between luxury product branding and real-world lifespan represents a serious flaw that could undermine the value proposition for consumers expecting long-term investment.
Chapter Two: Anatomy of Innovative Technologies
The Bose QuietComfort Ultra Headphones are not merely a collection of hardware but an intelligent audio device driven by sophisticated digital signal processing (DSP). This chapter dissects the proprietary technologies at its core, revealing the mechanisms behind marketing terminology and their auditory impact.
2.1 Bose Immersive Audio: Challenge to Spatial Audio
One of this product’s biggest selling points is “Bose Immersive Audio.” This technology processes conventional stereo sources in real-time, creating a more natural and immersive soundstage that feels like speakers are positioned in front of you, rather than sound appearing to come from inside your head 10.
Two modes are available. “Still” mode keeps the sound image fixed in space even when you move your head left and right, providing an experience like being in a listening room. “Motion” mode has the sound image follow your movements, making it suitable for listening while mobile 12. Notably, this function works with any audio source, independent of specific audio formats 12.
However, evaluations of its effectiveness are not uniform. While some highly praise its effects with live recordings, acoustic, and classical genres 21, critical opinions note that some music can feel unnaturally stretched or lacking cohesion 22. This innovative feature comes with a trade-off: enabling Immersive Audio reduces battery life from 24 hours to 18 hours, a significant 25% reduction 10.
2.2 CustomTune Technology: Personalized Acoustic Experience
“CustomTune Technology” is Bose’s proprietary technology for optimizing the listening experience for individual users. Each time you put on the headphones and turn them on, built-in microphones play special calibration tones and measure how your unique ear canal shape affects those sounds. By analyzing this acoustic reflection, the system automatically adjusts sound performance and noise-cancelling characteristics based on the results 10.
The purpose of this process is to compensate for variations in acoustic characteristics due to individual anatomical differences in ears, providing all users with the balanced, faithful audio experience Bose intended 10. This technology is a crucial element determining the basic sound quality discussed later and supports the foundation of the consistent listening experience Bose aims for.
2.3 Hardware: Drivers and Microphone Array
At the acoustic heart lie dynamic drivers 11. While Bose doesn’t publish detailed specifications like driver diameter, this reflects the company’s philosophy of emphasizing DSP-based acoustic control over individual driver performance.
What physically supports this product’s exceptional performance is a sophisticated microphone array. Multiple microphones (reported as either 8 12 or 12 11 depending on sources) strategically placed both inside and outside the ear cups capture ambient noise with high precision. This hardware forms the foundation for enabling world-class noise-cancelling performance and CustomTune personalization 12. These technologies clearly demonstrate Bose’s shift from pure acoustic engineering to computational audio with software and personalization at its core. This represents the modern trend of headphones evolving from simple playback devices into continuously evolving software platforms.
Chapter Three: Objective Evaluation and Subjective Impressions of Acoustic Performance
The heart of any audio product lies in its sound quality. This chapter rigorously analyzes the acoustic performance of the Bose QuietComfort Ultra Headphones from an audiophile perspective, combining objective measurement data with detailed listening tests.
3.1 Frequency Response Analysis: Objective Anatomy of Bose Sound
Frequency response measurement data from specialist sites like SoundGuys objectively reveals this product’s acoustic character 24. Its characteristic is clear low-frequency emphasis. Particularly noticeable boost is seen in the sub-bass to bass region, creating Bose’s distinctive powerful and full-bodied sound. Meanwhile, the midrange is kept relatively flat, suggesting intent to ensure clarity of vocals and primary instruments. The high frequencies generally follow target curves reflecting general listener preferences, though several peaks and dips exist 24.
This tuning would feel attractive and “fun” to many general consumers. However, it deviates from the original fidelity and neutral balance that audiophiles seek. Some users’ evaluations of “too much bass” and “muddy sound” stem from this intentional sound signature 27. Conversely, positive opinions view this rich bass as a natural evolution from past models 21.
3.2 Genre-Specific Subjective Listening Tests
- Classical & Jazz: With complex instrumental arrangements and vast dynamic ranges in classical music, midrange accuracy is tested. While vocal and instrumental textures of piano and saxophone are well reproduced, low-frequency emphasis tends to somewhat mask the delicate resonance of double bass and cello, reducing overall transparency. The soundstage is relatively wide even with Immersive Audio off, but accuracy of imaging takes a step back to more neutrally tuned headphones.
- EDM & Rock: In these genres, this product’s low-frequency strength is fully demonstrated. EDM kick drums and rock basslines are reproduced with depth and impact. However, in fast passages, transient speed and damping feel somewhat loose, causing sound to bleed into the midrange (becoming boomy). High-frequency energy is sufficient, but cymbal resonance occasionally feels artificial in some tracks.
3.3 Codec Performance and Snapdragon Sound
Regarding connectivity, support for Qualcomm’s aptX Adaptive codec in addition to SBC and AAC is a major feature 8. This provides significant benefits for Android smartphone users (especially those with Snapdragon Sound certified models). aptX Adaptive is an advanced codec that dynamically changes bitrate according to communication conditions, potentially achieving both high quality (up to CD-quality lossless transmission) and low latency 13. This allows Android users to potentially enjoy higher quality wireless audio compared to iPhone users limited to AAC connection. However, it doesn’t support LDAC, which competitor Sony’s WH-1000XM6 supports 30.
3.4 Equalizer Limitations
The equalizer built into the Bose Music app is insufficient to maximize this product’s potential. Only a 3-band graphic EQ adjusting “bass,” “mids,” and “treble” plus several presets are provided 13.
While this simple EQ allows broad adjustments like reducing bass or enhancing treble, it cannot handle surgical sound quality adjustments to precisely correct specific frequency peaks or dips. Considering that many competitors offer more detailed parametric EQs, this is clearly a weakness 31. Bose has equipped a high-performance engine like aptX Adaptive but hasn’t provided sophisticated tools for users to freely customize that performance. This disparity between hardware potential and software constraints will be a major source of dissatisfaction for audiophiles who care about sound quality in this price range.
Chapter Four: Listening Impressions
Beyond objective data lies the texture of sound and musical expression that cannot be quantified. Here we collect specific auditory impressions from reviewers and users worldwide to explore more deeply the sonic world this product creates.
| Reviewer / Publication | Quote Excerpt (Translation + Original) |
|---|---|
| What Hi-Fi? | ”Extremely entertaining, enthusiastic and refined sound. Punchy, precise and dynamic. Richly textured detail and full-bodied presentation.” “Hugely entertaining, enthusiastic and refined sound. Punchy, precise and dynamic. Richly textured detail and full-bodied presentation.” 34 |
| TechGearLab | ”Bass is powerful yet tight and crisp… mids beautifully develop with vivid color range and pristine clarity… highs are lovely and clean but feel slightly distant.” “The bass is powerful yet tight and crisp… The mids are beautifully developed, with a vivid range of color and pristine clarity… The highs are lovely and clean, but feel a bit more distant.” 35 |
| recordingnow.com | ”Out of the box, QuietComfort Ultra has too much bass. It completely overpowers the entire frequency response… (after EQ) This detail and resolution is simply incredible.” “Out of the box, the QuietComfort Ultra has TOO MUCH bass. It completely overpowers the entire frequency response… The detail and resolution in these (after EQ) is simply incredible.” 36 |
| Reddit User u/CupProfessional3478 | ”I would say the out-of-box sound signature is slightly warm but overall pretty neutral. Bose tends to bring their sound profile closer to neutral compared to mainstream brands overall, and this isn’t much different.” “I would say the sound signature out the box is a slightly warm but overall pretty neutral. Bose tends to tweak their sound profile closer to neutral in comparison to all of the mainstream brands and this isn’t too much different.” 37 |
What emerges from these quotes is an inconsistent yet interesting acoustic profile. What Hi-Fi? and TechGearLab highly praise its dynamic and rich sound, while the recordingnow.com reviewer harshly points out excessive bass without EQ adjustment 34. This evaluation split suggests that this product’s sound significantly changes its impression depending on listener preferences and EQ settings used. Meanwhile, the more casual Reddit user perspective sees its sound as within “neutral” range, suggesting it’s not a departure from Bose’s traditional sound tuning 37. These diverse opinions highlight the typical dilemma facing modern consumer audio products: aiming for universal tuning while creating divisive evaluations among audiophiles.
Chapter Five: Verification of World-Class Noise-Cancelling Performance
The core technology that brought Bose to worldwide recognition is Active Noise Cancelling (ANC). This chapter examines the ANC performance of the QuietComfort Ultra Headphones, which the company claims is “world-class,” from multiple angles using objective data, real-world usage impressions, and reported issues.
5.1 Active Noise Cancelling (ANC) Objective Data
Measurement data from specialized institutions shows this product’s ANC performance is at an extremely high level. According to SoundGuys’ noise isolation graphs, it demonstrates exceptional noise reduction effects, particularly for low-frequency noise like aircraft engines and train running sounds, as well as mid-frequency ranges containing human speech 24. In real environments, it can reduce noise volume by approximately 87% for sounds like bus engines, train creaking, and aircraft roar, representing industry-leading performance 13.
However, some users have questioned performance in frequencies below 200Hz based on RTINGS measurement data 38. Yet the site’s overall evaluation and majority user testimonials praise ANC performance 39, suggesting potential discrepancy between static measurement values and actual perceived performance.
5.2 Real-World Performance
Real-world evaluations support the objective data. Numerous reports praise its silence in various environments including train commutes, long flights, and noisy offices 21. It truly provides deep immersion as if cut off from the surrounding world.
The naturalness of “Aware mode” that lets in external sound also deserves special mention. You can perceive surrounding sounds as if not wearing headphones, balancing safety and convenience 12. Additionally, “WindBlock” function reduces wind noise to microphones during calls in windy conditions, enhancing practicality 12.
5.3 Investigation of Operational Noise Issues
However, this powerful ANC performance has reported side effects that cannot be overlooked. These are problems where “thudding” or “popping” impact sounds and pressure sensations occur when climbing stairs or walking somewhat briskly 14.
The root cause of this phenomenon is presumed to be the extremely high-sensitivity ANC system. Microphones designed to cancel external noise pick up physical vibrations from walking and minute air pressure changes within ear cups, mistakenly processing and amplifying them as “noise,” creating these unpleasant artifacts. This suggests Bose may have created unintended side effects by pushing system sensitivity to extremes in pursuit of silence.
This problem doesn’t occur for all users but is frequently reported, potentially becoming a fatal flaw that fundamentally undermines product value for users whose primary purpose is listening to music while mobile. Bose may have sacrificed stability in dynamic environments (like walking on streets) while optimizing noise removal in static environments (like aircraft cabins). This represents an important case demonstrating the limitations of evaluating ANC performance through simple numbers.
Chapter Six: Connectivity, Battery, and User Experience
Even cutting-edge acoustic technology loses half its value without accompanying daily usability. This chapter evaluates practical aspects of daily use including connection stability, battery durability, and call quality.
6.1 Bluetooth 5.3 and Multipoint Connection
This product adopts Bluetooth 5.3 standard, contributing to improved connection stability and energy efficiency 10. A notable feature is support for “Bluetooth multipoint” allowing simultaneous connection to two devices 10. This enables seamless call answering when your smartphone rings while listening to music on a laptop. However, some users report that device switching isn’t completely seamless, requiring stopping playback on one device before the other begins, falling short of expected convenience 14.
6.2 Battery Life and Charging
Stated battery life is up to 24 hours with ANC on, and up to 18 hours with Immersive Audio enabled 10. While this is sufficient playback time for most users, independent testing by SoundGuys recorded 27 hours 37 minutes with ANC on, exceeding stated specifications and suggesting actual performance may be even better 13.
Charging occurs via USB-C port, with full charge completing in approximately 3 hours. Additionally, 15 minutes quick charging enables up to 2.5 hours playback, making it responsive to sudden outings 11. However, a major constraint of this 2023 model is inability to use headphones while charging via USB-C 14. This is an important point improved in the 2nd generation model discussed later.
6.3 Call Quality
Bose claims “surprisingly clear calls” 10, with advanced microphone systems as the foundation. Actual user feedback is generally positive, with many evaluating that voices sound clear to call recipients 21. However, regarding noise suppression performance in noisy environments, some comparative opinions favor competitors like Sony’s WH-1000XM5, so it’s not the absolute champion 39.
Chapter Seven: Market Positioning and Competitive Analysis
To question the true value of Bose QuietComfort Ultra Headphones, evaluating product performance alone is insufficient. We clarify what position this product occupies in the intensely competitive premium ANC headphone market through comparison with major competitors.
Table 2: Premium ANC Headphone Market Competition Comparison
| Item | Bose QuietComfort Ultra | Sony WH-1000XM6 | Sennheiser MOMENTUM 4 |
|---|---|---|---|
| Suggested Retail Price (Japan) | ¥59,400 | $449.99 (approx. ¥67,500) | $449.95 (approx. ¥67,500) |
| Bluetooth Version | 5.3 10 | 5.3 30 | 5.4 41 |
| Supported Codecs | SBC, AAC, aptX Adaptive 8 | SBC, AAC, LDAC, LC3 30 | SBC, AAC, aptX, aptX Adaptive 31 |
| Battery Life (ANC On) | Up to 24 hours 10 | Up to 30 hours 43 | Up to 60 hours 44 |
| Weight | 253g 8 | 254g 8 | Not disclosed |
| Unique Features | Immersive Audio, CustomTune 10 | 360 Reality Audio, DSEE Extreme 30 | Adaptive Noise Cancellation 44 |
Note: Sony and Sennheiser prices are USD reference prices and may differ from Japanese retail prices.
7.1 Showdown with Sony WH-1000XM6
The biggest rival competing for market dominance is Sony’s WH-1000XM6. Comparing the two reveals clear strengths and weaknesses. Bose tends to lead with traditionally well-regarded comfort and pure noise-cancelling performance strength 46. Meanwhile, Sony surpasses Bose in battery life (over 30 hours vs 24 hours), support for more widespread high-quality codec LDAC, and far more functional equalizers 30. Call quality in noisy environments is also frequently cited as Sony’s strength 39.
7.2 Comparison with Sennheiser MOMENTUM 4 Wireless
Highly rated by audio enthusiasts is the Sennheiser MOMENTUM 4 Wireless. This model’s greatest weapon is an amazing 60-hour battery life 44. Additionally, its sound signature is more balanced than Bose and supported by users preferring more neutral sound quality. In this comparison too, Bose maintains a lead in comprehensive ANC performance and comfort.
7.3 Price and Value Assessment
The retail price of Bose QuietComfort Ultra Headphones in Japan ranges from approximately ¥40,000 to the suggested retail price of ¥59,400 depending on retailer 4. Evaluating its value, premium pricing is set for industry-leading ANC performance and unparalleled comfort. However, that value should be relatively judged considering consumer-oriented bass-heavy sound tuning, aforementioned durability concerns, and strong competitive products.
Chapter Eight: Future Prospects: Expectations for the 2nd Generation Model
When considering purchasing the Bose QuietComfort Ultra Headphones (2023 release model), there’s extremely important information. Bose has already announced a successor “2nd Generation” model 48. The existence of this new model significantly impacts the current model’s value and purchase timing, making accurate understanding of its changes essential.
Table 3: Bose QuietComfort Ultra Headphones Generation Comparison
| Feature | 1st Generation (2023) | 2nd Generation (2025 announced) |
|---|---|---|
| Release Year | 2023 5 | 2025 (planned) 49 |
| Bluetooth Version | 5.3 10 | 5.4 48 |
| Battery Life (ANC On) | Up to 24 hours 10 | Up to 30 hours 48 |
| Battery (Immersive Audio) | Up to 18 hours 10 | Up to 23 hours 48 |
| USB-C Audio | Charging only 14 | Lossless audio support (16-bit/48kHz) 48 |
| New Features | - | Cinema Mode 48 |
| Price (At announcement) | ¥59,400 (Japan) 4 | $449 (USA) 49 |
8.1 What Changes in the 2nd Generation
The 2nd generation model scheduled for 2025 release is not mere minor change. Several functional enhancements particularly important for audiophiles have been announced 29.
- Lossless USB-C Audio: The biggest evolution is support for wired digital audio input via USB-C port. This enables completely bypassing Bluetooth compression to play lossless sources up to 16-bit/48kHz without degradation 48. This overcomes one of the 1st generation’s biggest weaknesses and enables charging while in use.
- Improved Battery Life: Battery life with ANC on extends significantly to up to 30 hours (23 hours with Immersive Audio use), reaching equivalent levels to competing Sony products 48.
- New “Cinema Mode”: A new spatial audio mode optimized for video content is added 48.
- Other Improvements: Bluetooth version updates to 5.4, plus smarter wear detection and enhanced power saving features 29.
8.2 Purchase Strategy: Wait or Buy Now
The significance of these upgrades is substantial. Particularly, USB-C audio addition resolves fundamental constraints the 1st generation model has for users prioritizing sound quality above all. Battery life improvements also greatly enhance daily convenience.
Given this reality, purchase strategy becomes clear. For serious audiophiles seeking the best sound quality and future-proofing, waiting for the 2nd generation model is the wisest choice. Meanwhile, if you prioritize ANC performance and comfort above all and can obtain the 1st generation model at significant discount, it remains an attractive option.
The 2nd generation announcement has effectively positioned the 1st generation as an “incomplete” product. This can be seen as Bose’s strategic response to high-fidelity audio market demands initially overlooked in the original product planning. The 1st generation may be concluded as a transitional product born during Bose’s exploration of the next-generation flagship vision.
Chapter Nine: Evaluation
Based on this report’s analysis, we score the Bose QuietComfort Ultra Headphones across five evaluation axes. This represents evaluation from the specific perspective of audiophiles, with weight varying according to individual user priorities.
| Evaluation Axis | Score (out of 5) | Commentary |
|---|---|---|
| Technical Performance | ★★★★☆ (4.0/5) | Industry-leading ANC performance and acoustic personalization through CustomTune deserve praise 13. However, walking noise issues 14, limited 3-band EQ 31, and lack of USB-C audio support (1st generation) represent significant technical constraints preventing perfect evaluation. |
| Musical Appeal | ★★★☆☆ (3.5/5) | Out of box, bass is excessive and some users describe it as “muddy” 27. However, with EQ adjustment, it can reveal incredible detail and resolution, hiding audiophile-grade potential 36. Immersive Audio splits evaluation by genre, sometimes enhancing musical experience or feeling unnatural 21. |
| Build Quality | ★★☆☆☆ (2.5/5) | Lightweight design and adoption of quality materials like aluminum and protein leather are commendable 52. However, numerous reports of ear cushion seam tearing within months due to adhesive processing severely undermine reliability as a premium product 16. |
| Price-to-Value | ★★★☆☆ (3.0/5) | While possessing clear strengths in top-level ANC and comfort, build quality concerns not matching expensive pricing (¥59,400) and functional weaknesses compared to competitors (EQ, battery, etc.) exist 8. The existence of the significantly enhanced 2nd generation model further reduces the current model’s relative value 48. |
| Future-proofing / Repairability | ★★☆☆☆ (2.0/5) | User-replaceable ear cushions are commendable, but the high likelihood of early replacement is concerning 4. Important upgrades like USB-C audio and battery performance improvements are all incorporated into the 2nd generation model 48, making the 1st generation model’s future prospects extremely limited. |
Conclusion: Value for Audiophiles
The comprehensive evaluation of Bose QuietComfort Ultra Headphones varies greatly depending on what users prioritize most. This is a product with extremely clear strengths and weaknesses.
Core strengths lie in industry-leading active noise-cancelling performance and exceptional comfort that doesn’t fatigue during extended use. For business professionals and travelers who frequently use planes and trains, this unparalleled silence and fit provide irreplaceable value. For them, this product continues to be a top-tier choice in the market.
However, from an audiophile perspective, several serious weaknesses emerge. First, bass-emphasized consumer-oriented sound tuning doesn’t satisfy ears seeking original fidelity. Second, the equalizer for correcting that sound is extremely poor, not allowing the precise adjustments users seek. Third, ear cup durability concerns not matching premium pricing significantly undermine long-term ownership value. Finally, potential unpleasant noise (thumping noise) during walking can become a fatal flaw for users whose primary purpose is mobile listening.
Added to these factors is the decisive reality of 2nd generation model arrival. Considering the successor directly resolves the biggest sound quality weakness identified in this report (lack of high-quality wired digital connection), recommending the current 1st generation model to audiophiles at full price is extremely difficult.
The final recommended user profiles are as follows:
- Recommended Users:
- “Silence-first advocates” who prioritize ANC performance over sound quality.
- “Frequent flyers” who regularly use long-distance flights.
- Loyal Bose brand fans who value comfort above all else.
- Those who can obtain this product at significant discount prices.
- Users Requiring Caution:
- Critical listeners seeking neutral sound quality immediately after purchase.
- Users who handle equipment roughly and prioritize durability.
- Users whose main usage scenario is outdoor walking.
- Users Recommended to Wait:
- Pure audiophiles seeking the highest possible sound quality and more future-proof feature sets. For this demographic, waiting for the 2nd generation model is undoubtedly the wisest action.
Overall Rating: ★★★☆☆ (3.5/5)
This rating reflects the deep contradictions this product possesses. It achieves near-perfect performance in noise-cancelling and comfort, potentially becoming the best choice for specific applications. However, unignorable compromises exist in sound fidelity, build quality, and future-proofing that audiophiles value, preventing it from being called a universal masterpiece. Our conclusion is that it’s an excellent tool specialized for specific purposes, not a universal classic.
References
- History – Bose Aviation Headsets, https://boseaviation.com/about/history/
- Meet The Indian-American Engineer Who Created The First Noise-Cancelling Headphones, https://homegrown.co.in/homegrown-creators/meet-the-indian-american-engineer-who-created-the-first-noise-cancelling-headphones
- How a “Genius” Engineer Designed the First Noise Cancelling Headsets, https://www.thebroadcastbridge.com/content/entry/1946/how-a-genius-engineer-designed-the-first-noise-cancelling-headsets
- ボーズ BOSE ノイズキャンセリングヘッドホン 空間オーディオ/Bluetooth対応 ブラック QuietComfort Ultra Headphones BLK - ヨドバシ, https://www.yodobashi.com/product/100000001008094187/
- List of Bose headphones - Wikipedia, https://en.wikipedia.org/wiki/List_of_Bose_headphones
- Why are QuietComfort Ultra Headphones sold so cheaply in Japan online? - Reddit, https://www.reddit.com/r/japan/comments/17tkolt/why_are_quietcomfort_ultra_headphones_sold_so/
- Bose QuietComfort Ultra Headphones (第2世代)のご購入はこちらから | ボーズ, https://www.bose.co.jp/ja_jp/products/headphones/noise_cancelling_headphones/QCUH2-HEADPHONEARN.html
- ブルートゥースヘッドホン （空間オーディオ対応） QuietComfort Ultra Headphones Black QCULTRAHPBLK [ノイズキャンセリング対応 /Bluetooth対応] BOSE - ビックカメラ, https://www.biccamera.com/bc/item/12154526/
- QuietComfort Ultra Wireless Noise Cancelling Headphones - BOSE, https://www.bose.co.jp/ja_jp/products/headphones/noise_cancelling_headphones/bose-quietcomfort-headphones-ultra.html
- QuietComfort Ultra Wireless Noise Cancelling Headphones - Bose, https://www.boselatam.com/en_ar/products/headphones/noise_cancelling_headphones/bose-quietcomfort-headphones-ultra.html
- Bose QuietComfort Ultra Wireless Noise Canceling Over-Ear Headphones (Black) - B&H, https://www.bhphotovideo.com/c/product/1785029-REG/bose_880066_0100_quietcomfort_ultra_wireless_noise_canceling.html
- Bose QuietComfort Ultra Headphones, https://www.bose.com/p/headphones/bose-quietcomfort-ultra-headphones/QCUH-HEADPHONEARN.html
- Bose QuietComfort Ultra Headphones review - SoundGuys, https://www.soundguys.com/bose-quietcomfort-ultra-headphones-review-103901/
- Bose User Warns People to “avoid Bose QC Ultra at all costs” | Headphonesty, https://www.headphonesty.com/2024/01/user-lists-reasons-avoid-bose-qc-ultras/
- Bose QuietComfort Ultra Review - YouTube, https://www.youtube.com/watch?v=x_5qrD6aLeY
- Spoiler: Bose QC Ultra (2nd Gen) Headphones - Reddit, https://www.reddit.com/r/bose/comments/1memdfo/spoiler_bose_qc_ultra_2nd_gen_headphones/
- Poor Quality of Comfort Ultra Ear Cups : r/bose - Reddit, https://www.reddit.com/r/bose/comments/1fjujdi/poor_quality_of_comfort_ultra_ear_cups/
- Bose QC35 Ear Cushions worn out in an year with light usage! Is it normal? - Reddit, https://www.reddit.com/r/bose/comments/othfcd/bose_qc35_ear_cushions_worn_out_in_an_year_with/
- Replacing the ear cushions | Bose QuietComfort Headphones, https://support.bose.com/s/article/bose-quietcomfort-headphones-replacing-the-ear-cushions?language=en_US
- Fix Your Bose Ultra Headphones in 90-Seconds Ear Pad Replacement Repair Guide QC Ultra - YouTube, https://www.youtube.com/watch?v=v5Weqn3TMvc
- Review of the new Bose QuietComfort Ultra Headphones (over ear) tap to read - Reddit, https://www.reddit.com/r/bose/comments/171nf6b/review_of_the_new_bose_quietcomfort_ultra/
- Bose QuietComfort Ultra Earbuds (2nd Gen) review - What Hi-Fi?, https://www.whathifi.com/headphones/wireless-earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen
- Bose QuietComfort Ultra Earbuds, https://www.bose.com/p/earbuds/bose-quietcomfort-ultra-earbuds/QCUE-HEADPHONEIN.html
- Nothing Headphone (1) vs Bose QuietComfort Ultra Headphones: Can the $299 upstart beat Bose? - SoundGuys, https://www.soundguys.com/nothing-headphone-1-vs-bose-quietcomfort-ultra-headphones-140903/
- Bose QuietComfort Ultra Headphones vs Bose QuietComfort Headphones - SoundGuys, https://www.soundguys.com/bose-quietcomfort-ultra-headphones-vs-bose-quietcomfort-headphones-104085/
- Bose QuietComfort Ultra Headphones vs Sony WH-1000XM5 - SoundGuys, https://www.soundguys.com/bose-quietcomfort-ultra-headphones-vs-sony-wh-1000xm5-104454/
- Bose QuietComfort Ultra headphones sound muddy - Reddit, https://www.reddit.com/r/headphones/comments/1fpkv76/bose_quietcomfort_ultra_headphones_sound_muddy/
- New Bose QuietComfort Ultra headphones and earphones/earbuds coming soon, and QCSE/45 is reduced | Audio Science Review (ASR) Forum, https://www.audiosciencereview.com/forum/index.php?threads/new-bose-quietcomfort-ultra-headphones-and-earphones-earbuds-coming-soon-and-qcse-45-is-reduced.47181/
- Bose Unveils the Next Generation of the QuietComfort Ultra Headphones | TechPowerUp, https://www.techpowerup.com/340905/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphones
- Sony WH-1000XM6 Noise-Canceling Wireless Over-Ear Headphones (Black) - B&H, https://www.bhphotovideo.com/c/product/1894980-REG/sony_wh1000xm6_b_wh_1000xm6_noise_canceling_wireless_over_ear.html
- Bose QuietComfort Headphones 2 wishlist: All the features I want to see - SoundGuys, https://www.soundguys.com/bose-quietcomfort-headphones-2-131060/
- Bose QuietComfort Ultra Earbuds (2nd Gen) Review: The Best Noise-Cancelling Earphones We’ve Tested | PCMag, https://www.pcmag.com/reviews/bose-quietcomfort-ultra-earbuds-2nd-gen
- Bose Announces QuietComfort Ultra Headphones (2nd Gen)! - YouTube, https://www.youtube.com/watch?v=e_hKji_nTac
- Bose QuietComfort Ultra Headphones review: sound quality and …, https://www.whathifi.com/reviews/bose-quietcomfort-ultra-headphones-review
- Bose QuietComfort Ultra Headphones Review | Tested, https://www.techgearlab.com/reviews/audio/wireless-headphones/bose-quietcomfort-ultra-headphones
- Bose QuietComfort Ultra Review: WORTH IT in 2025? - RecordingNOW.com, https://recordingnow.com/blog/bose-quietcomfort-ultra-review/
- Bose QC Ultra Headphones: Top tier noise cancelling : r/headphones, https://www.reddit.com/r/headphones/comments/1786q4q/bose_qc_ultra_headphones_top_tier_noise_cancelling/
- Rtings.com Bose Quietcomfort Ultra headphones Review - for Insiders - Reddit, https://www.reddit.com/r/bose/comments/17m34mk/rtingscom_bose_quietcomfort_ultra_headphones/
- RTINGS Bose Ultra Headphones Review - Reddit, https://www.reddit.com/r/bose/comments/17pzo8z/rtings_bose_ultra_headphones_review/
- “Popping” sound/s when walking heavy/running with QuietComfort Ultra : r/bose - Reddit, https://www.reddit.com/r/bose/comments/18dzjb3/popping_sounds_when_walking_heavyrunning_with/
- Sennheiser Momentum 4 | True Wireless Hi-Fi Earphones - Bloom Audio, https://bloomaudio.com/products/sennheiser-momentum-4-mtw4-tws
- WH-1000XM6 Wireless Noise Cancelling Headphones - Moon Audio, https://www.moon-audio.com/products/sony-wh-1000xm6-wireless-noise-cancelling-headphones
- Sony WH-1000XM6 Best Wireless Noise Canceling Headphones, https://electronics.sony.com/audio/headphones/headband/p/wh1000xm6-b
- MOMENTUM 4 Wireless | Sennheiser United States, https://www.sennheiser-hearing.com/en-US/p/momentum-4-wireless/
- Sennheiser Momentum 4 Wireless Headphones - Bluetooth Headset for Crystal-Clear Calls with Adaptive Noise Cancellation, 60h Battery Life and Customizable Sound, Graphite - Walmart, https://www.walmart.com/ip/Sennheiser-Momentum-4-Wireless-Headphones-Bluetooth-Headset-Crystal-Clear-Calls-Adaptive-Noise-Cancellation-60h-Battery-Life-Customizable-Sound-Graph/5262188350
- Sony WH-1000XM6 vs Bose QuietComfort Ultra Headphones - SoundGuys, https://www.soundguys.com/sony-wh-1000xm6-vs-bose-quietcomfort-ultra-headphones-137869/
- Bose QuietComfort Ultra Headphones 価格比較, https://kakaku.com/item/J0000042682/
- Shop Bose QuietComfort Ultra Headphones (2nd Gen), https://www.bose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.html
- Bose Unveils the Next Generation of the QuietComfort Ultra Headphones, https://www.bose.com/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphones
- Bose QuietComfort Ultra Headphones 2nd Gen land, boasting even better ANC, USB-C audio and a much-needed battery bump | TechRadar, https://www.techradar.com/audio/headphones/bose-quietcomfort-ultra-headphones-2nd-gen-arrive-all-you-need-to-know
- Bose Unveils the Next Generation of the QuietComfort Ultra Headphones - TechPowerUp, https://www.techpowerup.com/forums/threads/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphones.340905/
- Bose QuietComfort Ultra headphones review: supreme comfort and noise cancelling, https://www.theguardian.com/technology/2023/nov/06/bose-quietcomfort-ultra-headphones-review-supreme-comfort-and-noise-cancelling
- Bose QuietComfort 35 II Review (Noise Cancelling Headphone), https://www.audiosciencereview.com/forum/index.php?threads/bose-quietcomfort-35-ii-review-noise-cancelling-headphone.20584/
- Bose QuietComfort Ultra Headphones 2 debut with USB Audio - SoundGuys, https://www.soundguys.com/bose-quietcomfort-ultra-headphones-2-135860/
