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Reviewed on Mar 02, 2018 , Marc Henney, Jean-Christophe Lamontagne

Sony MDR-XB950B1
HEADPHONES REVIEW

Usage Ratings - Version 1.2

Test Benches: test

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2017
  • 0.9: Winter 2016
6.2
Mixed Usage
What it is This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
6.2
Critical Listening
What it is The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
6.4
Commute/Travel
What it is How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
6.4
Sports/Fitness
What it is How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
6.4
Office
What it is How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
5.5
Home Theater
Score components:
5.3
Gaming
Score components:
Type : Over-ear
Enclosure : Closed-Back
Wireless : Yes
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The Sony MDR-XB950B1 are decent mixed usage headphones geared towards fans of bass. They're wireless and have a sturdy, premium-looking design that's decently comfortable. Their audio reproduction can be overly bass-heavy out-of-the-box but thanks to the Headphones Connect app you can EQ them for more critical listeners. Unfortunately, even with a good EQ, their sound won't be for everyone and the oddly sized ear cups, do not create the best seal around your ears which lets ambient noise seep into your music.

Test Results
Design 6.6
Sound 5.9
Isolation 6.0
Microphone 6.2
Active Features 6.4
Connectivity 6.2
Pros
  • Sturdy and durable build.
  • Easy-to-use and efficient controls.
Cons
  • Below-average noise isolation.
  • Overly bass-heavy sound quality.
Update 2/16/2018: Converted to Test Bench 1.2.
Update 9/28/2017: The microphone has been tested with our new methodology, as explained here
Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.

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6.6

Design

Score components:
Sony MDR-XB950B1 Design Picture

The Sony MDR-XB950B1 have a premium feel to them but look a bit awkward once on your head. This is the non-noise cancelling variant of the MDR-XB950N1. These headphones are well-built headphones with ample padding and a sturdy metal and plastic frame reinforcing the headband. This gives them a high-end appeal and somewhat comfortable fit but the size of the ear cups opening makes them sit awkwardly on the tips of your ears, which can get fatiguing after a while. They're also a bit bulky and the protruding ear cups sway a lot under physical activity, so even with their wireless design, they're not the best headphones for sports use.

Style
Sony MDR-XB950B1 Design Picture 2

The Sony XB950B1 have a premium look and feel but are not as sleek as some of the other Sony models. The circular ear cups are well padded, and the headband design is a mix of the old Sony MDR-ZX770BN and the newer MDR-1000X. They expose the metal frame with padding on the underside of the headband, which looks somewhat stylish. They also come in 3 color variations to better suit your taste, but, unfortunately, the relatively dense ear cups stick out once on your head and look a little awkward.

7.0 Comfort
What it is: Adjustability and degrees of freedom, pressure, stiffness and weight.
When it matters: When the headphones are going to be used for long durations.
Score components: Subjectively assigned
Sony MDR-XB950B1 Comfort Picture
Weight : 0.6 lbs
Clamping Force
What it is: The force that the headphones exert on your head, once you have them on. This is purely a measurement of the force applied, which does not take into account the earpad's surface area and the resulting pressure you will feel, on or around your ears.
When it matters: The tighter the headphones, the more force they put on your head. This can get uncomfortable or cause pain and soreness during long listening sessions.
:
1 lbs

The Sony MDRXB950B1 are decently comfortable headphones but don't have the best fit on larger ears. The ear cups and headband are padded enough that they do not feel too tight on the head. However, the padding creates an awkward fit as they do not quite feel like over-ears. This means the fit won't be as comfortable for everyone as they may pinch the tip of your ears ,which can begin to hurt after a while.

7.1 Controls
What it is: The control scheme of the headphones, the number of functions provided, button layout and ergonomics as well as the quality of tactile feedback.
When it matters: If you want to control volume, pause your music or make phone calls without directly interacting with your audio device.
Sony MDR-XB950B1 Controls Picture
Ease of use : Above-average
Feedback : Average
Call/Music Control : Yes
Volume Control : Yes
Microphone Control : No
Channel Mixing
What it is: Being able to mix audio channels directly on the headphones.
When it matters: This is most useful when using a separate chat software so that you can mix in-game audio and chat audio depending on your needs.
:
N/A
Noise Canceling Control : N/A
Talk-Through : N/A
Additional Buttons : Bass Effect

These headphones have a good control scheme. Skipping tracks, play/pause and volume controls are all on the right ear cup and have a good feedback that makes them quite easy to use. Power on and the bass effect button are on the left ear cup but do not feel as responsive as the rest of the buttons. They're a bit flat and difficult to find by touch alone.

6.3 Breathability
What it is: How hot the headphones get when you wear them for an extended period of time.
When it matters: If you often have long listening sessions or use your headphones while doing physical activities like running or working out.
Score components:
Sony MDR-XB950B1 Breathability After Picture
Avg.Temp.Difference : 6 C

The Sony XB950B1 are over-ear headphones with faux leather pads that somewhat restrict airflow to the outer ear. They do not have the best seal so they won't get as hot as some of the other over-ear models, like the QuietComfort 25 or the Oppo PM-3. However, they still cover most of your ears, which will make you sweat more than average. They won't be the best headphones for sports and working out.

6.0 Portability
What it is: The volume of space occupied by the headphones when folded into their most compact format.
When it matters: If you're often on the move and need to carry your headphones in a bag, purse , or pocket.
Score components:
Sony MDR-XB950B1 Portability Picture
L : 7.4 "
W : 7.1 "
H : 1.9 "
Volume : 102 Cu. Inches
Stand required : N/A

The Sony MDR-XB950B1-B are barely portable over-ear headphones. They lay flat to reduce their footprint but it doesn't save a significant amount of space since the ear cups are fairly large and dense. They also don't fold into a more compact format. That and the lack of a good case make them a bit cumbersome to carry around on your person, especially if you don't have a bag.

0 Case
What it is: The provided carrying options to protect your headphones when transporting them.
When it matters: To prevent damaging your headphones, if you often carry them in your bag or pocket.
Score components: Subjectively assigned
Type : No case
L : N/A
W : N/A
H : N/A
Volume : N/A

The Sony MDR-XB950B1 do not come with a case or pouch.

7.5 Build Quality
What it is: Durability, material quality, cheap/expensive feel.
When it matters: When the headphones are going to be used by multiple users (classes/studios), by children, in tough conditions, on a daily basis, or for exercise.
Score components: Subjectively assigned
Sony MDR-XB950B1 Build Quality Picture

The materials used in the build of the Sony XB950B1 feel premium and decently durable. The padding on both the headband and ear cups feels high-end. The headband is also reinforced with a sturdy enough metal and plastic frame so that the headphones won't get damaged if you stretch them a bit too far. Unfortunately, unlike the MDR-1A, the ear cups a bit plasticky and less resistant to impacts and drops.

6.0 Stability
What it is: How the headphones are designed to prevent them from slipping off your ears or falling off your head.
When it matters: If you plan on using the headphones while doing sports or other physical activities that requires a lot of movement.
Score components: Subjectively assigned
Sony MDR-XB950B1 Stability Picture

These headphones won't be ideal for exercising with. They are a bit too unstable to comfortably take jogging and the size and weight of the ear cups cause them to sway during physical activity. On the upside, they're wireless so during casual listening sessions they won't get yanked off your head because the audio cable got tangled or hooked on something.

Cable
Sony MDR-XB950B1 Cable Picture
Detachable : Yes
Length : 4.1 ft
Connection : 1/8" TRS

These headphones come with two cables; a 1/8" to 1/8" TRS audio cable and a micro-USB charging cable.

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Headshots 1
Headshots 2
5.9

Sound

What it is: How accurately the audio is reproduced. The tests are performed with the headphones' most commonly used features enabled (noise-cancelling, wireless, etc.)
Sony MDR-XB950B1 Frequency Response

The Sony MDR-XB950 are a sub-par sounding pair of closed-back over-ear headphones. They have way too much bass and not enough treble, even with the Extra Bass option set to Off. This makes their overall profile bass-heavy, boomy and dark, while lacking detail and presence on vocals and lead instruments. Counterintuitively, this will be a bigger issue on bass-heavy genres such as EDM and Hip-hop, since they already have a lot of bass and less of an issue on bass-light tracks such as old jazz and 70's rock, since they can use a bit of bass boost. Additionally, they have a pretty good imaging performance, but like most other headphones, their soundstage is not speaker-like and out-of-head.

5.3 Bass
What it is: Frequency Response from 20Hz-250Hz
When it matters: When the material is heavy on bass frequencies, such as those of kick drums and bass guitar.
Score components:
Sony MDR-XB950B1 Bass
Std. Err.
What it is: The amount of deviation (weighted standard error) in bass frequency response (20Hz-250Hz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) bass performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
6.94 dB
Low-Frequency Extension
What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Shows how extended the bass is.
Good value: <40Hz
Noticeable difference: 5Hz
:
10 Hz
Low-Bass
What it is: The average amount of over/under-emphasis in frequency response from 20Hz-60Hz.
When it matters: Kick drums and low frequency effects get their 'thump' from this range. Mostly felt than heard.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
7.58 dB
Mid-Bass
What it is: The average amount of over/under-emphasis in frequency response from 60Hz-120Hz.
When it matters: Melodic bass instruments have most of their fundamental frequencies in this range. This is where the 'body' and 'punch' of the bass sits.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
8.08 dB
High-Bass
What it is: The average amount of over/under-emphasis in frequency response from 120Hz-250Hz.
When it matters: Most instruments get their warmth and full-ness from this range. When over-emphasized, mixes tend to get muddy and boomy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
7.43 dB

The Sony MDR-XB950B1 have a sub-par bass. LFE (low-frequency extension) is at 10Hz, which is great for producing deep thump and rumbles. But, low-bass, mid-bass, and high-bass are all overemphasized by 8dB. This makes the bass of the Sonys quite overpowering, unclear, and boomy sounding. It should be noted that the test was performed with the Extra Bass option Off. These headphones will be even more bass-heavy with Extra Bass set to On. Reducing the bass using the app didn't give very satisfactory results either.

8.6 Mid
What it is: Frequency Response from 250Hz-2KHz
When it matters: When the material is heavy on mid-range frequencies. This is the case for the majority of audio content.
Score components:
Sony MDR-XB950B1 Mid
Std. Err.
What it is: The amount of deviation (weighted standard error) in mid frequency response (250Hz-2.5KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) mid performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
1.89 dB
Low-Mid
What it is: The average amount of over/under-emphasis in frequency response from 250Hz-500Hz.
When it matters: Most instruments have their fundamentals or low harmonics in this range. Over-emphasis in this range sounds muddy and cluttered. Under-emphasis, thins out the vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-0.74 dB
Mid-Mid
What it is: The average amount of over/under-emphasis in frequency response from 500Hz-1KHz.
When it matters: This range is occupied mostly by upper harmonics. Over-emphasis sounds forward and boxy. Under-emphasis pushes instruments to the back of the mix.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
1.73 dB
High-Mid
What it is: The average amount of over/under-emphasis in frequency response from 1KHz-2KHz.
When it matters: Most instruments, especially vocals, get their intensity and clarity from this range. Over-emphasis sounds honky and harsh, under-emphasis sounds weak and distant.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-0.58 dB

The mid-range of the Sony XB950B1 is very good. The dip in low-mid usually makes the vocals a bit thin and gives more emphasis to kick and bass instruments. But, because of the already overpowering bass, it won't have a noticeable effect here. The only other remark here is the overall 5dB tilt of the mid-range, favoring the lower frequencies. This gives a bit more emphasis to the bass range, at the expense of vocals and lead instruments.

2.9 Treble
What it is: Frequency Response from 2KHz-20KHz
When it matters: When the material is heavy on high-range frequencies, such as voice, cymbals, and any other material where brightness, brilliance and airiness is desired.
Score components:
Sony MDR-XB950B1 Treble
Std. Err.
What it is: The amount of deviation (weighted standard error) in treble frequency response (2.5KHz-20KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters: When a balanced and neutral (reference) treble performance is desired.
Good value: <4dB
Noticeable difference: 0.1dB
:
8.41 dB
Low-Treble
What it is: The average amount of over/under-emphasis in frequency response from 2KHz-5KHz.
When it matters: Almost all instruments rely on this range for their presence, detail, and articulation. Over-emphasis can sound harsh and painful. Under-emphasis hurts the comprehensibility of vocals and lead instruments.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-7.28 dB
Mid-Treble
What it is: The average amount of over/under emphasis in frequency response from 5KHz-10KHz.
When it matters: This is the sibilance range. Cymbals, vocals, and lead instruments rely on this range for brightness and presence. Over-emphasis sounds piercing and painful, under-emphasis sounds dull and lispy.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-8.49 dB
High-Treble
What it is: The average amount of over/under-emphasis in frequency response from 10KHz-20KHz.
When it matters: This range gives brilliance and airiness to the sound. Over-emphasis sounds hissy, under-emphasis sounds closed-up and lifeless.
Good value: +/-3dB
Noticeable difference: 0.1dB
:
-10.19 dB

These headphones have a poor treble performance. The response is rather uneven, but consistently underemphasized. Low-treble is under our target by 7dB, and mid-treble by 9dB. This will have a noticeable negative effect on their clarity, detail, and brightness, especially on vocals, lead instruments, cymbals.

Raw Frequency Response
What it is: The average uncompensated frequency response of the headphone. For in-ears and earbuds, this corresponds to the average of 5 measurements/re-seats on the dummy head (HMS). For over/on-ear headphones, this corresponds to the average of 5 measurements/re-seats on the HMS (Head Measurement System) for the mid and treble ranges, and 5 measurements/re-seats on 5 human subjects for the bass range.
When it matters: This is for those who want to see the raw and uncompensated frequency response of the headphone. Some of the more advanced users, are able to read and evaluate headphone frequency response in its raw form and without compensation. This will be especially useful to them if they have their own headphone compensation/target curve, which may differ from the compensation curve/target response used by RTINGS.com.
Score components:
6.8 Frequency Response Consistency
What it is: The amount of deviation of each frequency response pass, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Score components:
Sony MDR-XB950B1 Consistency L Sony MDR-XB950B1 Consistency R
Avg. Std. Deviation
What it is: The average amount of deviation in frequency response of 5 re-seats, from the average frequency response.
When it matters: Shows how consistently the headphones perform after re-positioning them.
Good value: <0.5
Noticeable difference: 0.1
:
0.66 dB

The frequency response consistency of the Sony XB950B1 is mediocre. The maximum deviation in the bass range across our human subjects is about 9dB, which is not good. If you wear glasses or have long hair breaking the air-tight seal between the headphones and your ear, there will most likely be a drop in bass. Their treble delivery, however, is decently consistent(up to 10KHz).

8.0 Imaging
What it is: Imaging qualities are inherent to the audio content, the headphones have to 'reproduce' them rather than 'create' them. They determine how accurately the objects are positioned in the stereo image, and how transparent the imaging is.
When it matters: When accurate positioning of the objects in the stereo image, and clear and transparent imaging is desired.
Sony MDR-XB950B1 Group Delay Sony MDR-XB950B1 Phase Response
Weighted Group Delay
What it is: The average amount of group delay calculated based on a perceptual weighting filter. Group delay indicates how long it takes for each frequency to reach their maximum amplitude. This is a monaural quality and can be perceived even with one ear.
When it matters: Headphones with lower group delay have more transparent imaging and a tighter bass. Headphones with higher group delay in the bass range tend to have a wimpy and loose bass, and headphones with higher group delay in the treble range tend to have a less transparent imaging.
Good value: <0.5
Noticeable difference: 0.1
:
0.27
Weighted Amplitude Mismatch
What it is: The Left/Right balance of our test unit, that is, the amount of amplitude difference between the left and right drivers. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When a properly balanced stereo image and low manufacturing tolerance is desired. A poor score indicates a noticeable difference in level between the left and right drivers.
Good value: <1.5
Noticeable difference: 0.1
:
1.09
Weighted Frequency Mismatch
What it is: The amount of difference (Std. Err.) between the frequency response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance, is desired. A poor score indicates there may be 'holes' in the stereo image at certain frequencies.
Good value: <2
Noticeable difference: 0.1
:
2.6
Weighted Phase Mismatch
What it is: The amount of difference (Std. Err.) between the phase response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters: When an even and stable stereo image, as well as a low manufacturing tolerance is desired. A poor score indicates there may be inaccuracies in the stereo image reproduction at certain frequencies.
Good value: <16
Noticeable difference: 3
:
7.28

The imaging of the Sony MDR-XB950B1 is very good. Their weighted group delay is 0.27, which is good. The graph also shows that group delay never crosses the audibility threshold, which indicates a tight bass and transparent treble reproduction. This is quite impressive considering the amount of bass these headphones produce. Additionally, the L/R drivers of our test unit were quite well-matched, which is important for proper localization and placement of objects (vocals, instruments, footsteps) in the stereo image.

5.5 Soundstage
What it is: Soundstage qualities are not inherent to the audio content, the headphones have to 'create' them rather than 'reproduce' them. They determine whether the sound is perceived to be coming from inside or in front of the head, how open and spacious the soundstage is, how much the headphones acoustically interact with the environment, and how strong the phantom center is.
When it matters: When an accurately produced, large and spacious soundstage, similar to that of a stereo loudspeaker setup is desired.
Sony MDR-XB950B1 PRTF
PRTF Accuracy (Std. Dev.)
What it is: The standard deviation of the PRTF (Pinna-related transfer function) of the headphones compared to a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: An accurate pinna activation is mainly responsible for how natural and speaker-like the soundstage is perceived to be. The less error in the shape of the PRTF, the more natrual and speaker-like the perception of the soundstage will be. High amounts of error may indicate a soundstage that is unnatural or odd.
Good value: <2.5
Noticeable difference: 0.1
:
2.88 dB
PRTF Size (Avg.)
What it is: The average amplitude of the PRTF (Pinna-related transfer function) of the headphones compared to that of a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is responsible for the perceived size of the soundstage. The higher the value, the larger the perceived size of the soundstage. However, values above the reference (5.0dB) could result in a soundstage that is perceived as unnatural or odd.
Good value: >3.7
Noticeable difference: 0.1
:
3.14 dB
PRTF Distance
What it is: The depth of the "10KHz notch" of the headphone's PRTF, which is caused by phase cancellations at the concha. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters: This value is mainly responsible for the perceived distance and elevation of the soundstage. A small distance value may result in a soundstage that is perceived to be located inside the head. Larger values may help pull the soundstage out from inside of the head and bring it to the front.
Good value: >13
Noticeable difference: 1
:
9.66 dB
Openness
What it is: How open the headphones are, and how open and spacious they sound. This quality is monaural and can be perceived even with one ear. This test differentiates between acoustically and electronically produced crosstalk and only takes the acoustically generated crosstalk into account. This value is the inverse of the Noise Isolation test score, and could be indirectly related the acoustic impedance of the headphones.
When it matters: When a headphone with a sense of an open, and spacious soundstage is desired. A value of 10 indicates a fully open headphone, and a value of 0 indicates a fully closed headphone.
Good value: >7.5
Noticeable difference: 0.5
:
4.8
Acoustic Space Excitation
What it is: How loud the headphones are, and how much they excite their environment acoustically. If the headphones are loud and open enough, the sound leaking from the headphones will be affected by the environment (reflections/reverb) before reflecting back into the open headphones and to the listener's ears. This quality is monaural and can be perceived even with one ear. This value is the inverse of the Leakage test score.
When it matters: Headphones with higher excitation values, similar to openness, tend to have soundstages that are perceived as more open and spacious.
Good value: >7.5
Noticeable difference: 0.5
:
2.8
Correlated Crosstalk
What it is: How strong and solid the phantom center is. This is mostly a stereo quality and its effects on mono content are minimal. This test is sensitive to the phase of the crosstalk and whether it is produced acoustically or electronically.
When it matters: When a true reproduction of the stereo image is desired. A value of 0 indicates no crosstalk, or that the existing crosstalk is not correlated enough to affect the phantom center. A negative score means the crosstalk is out of phase with the original signal, resulting in a slightly wider stereo image at the expense of creating a 'hole' at the center of the stereo field. A positive score means the crosstalk is in phase and positively affecting the phantom center.
Good value: >1dB
Noticeable difference: 0.3dB
:
0.0 dB

The soundstage of the Sony XB950B1 is sub-par. Their PRTF response doesn't follow the shape of our reference speaker's PRTF, indicating that the soundstage won't feel quite speaker-like. However, they do activate the pinna (outer ear) to some extent, suggesting that their soundstage will be perceived to be larger than that of in-ears and most on-ears. Also, because of their closed-back design, they won't sound as open as open-back design headphones would.

6.5 Total Harmonic Distortion
What it is: The subtle, unwanted frequencies (harmonics) produced alongside the intended frequencies.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Score components:
Sony MDR-XB950B1 Distortion
Weighted THD @ 90
What it is: The overall amount of harmonic distortion measured at 90dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: <0.100
Noticeable difference: 0.1
:
3.754
Weighted THD @ 100
What it is: The overall amount of harmonic distortion measured at 100dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at loud listening levels.
Good value: <0.300
Noticeable difference: 0.1
:
22.653

The Sony XB950B1 have an average harmonic distortion performance. The overall amount of harmonic distortion in the bass and lower mid ranges is elevated both at 90 and 100dB SPL, probably because of the amount of bass these headphones try to produce. There are also a couple of bumps in THD at 300Hz and 4KHz, This will have a small negative effect in the clarity and transparency in those regions.

6.0

Isolation

Score components:

The MDR-XB950B1 have a subpar isolation performance. They isolate passively and let a lot of ambient noise seep into your audio, so they won't be the best headphones for your daily commute or to use in loud, noisy environments. On the upside, they do not leak much, so you won't distract anyone around you at moderate-to-high volumes so you can turn up the volume to mask some of the ambient noise.

5.2 Noise Isolation
What it is: How much outside noise is blocked out by putting the headphones on.
When it matters: If the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
Score components:
Sony MDR-XB950B1 Noise Isolation
Isolation Audio
What it is: The simulated noise isolation of the headphones, demonstrating how much outside noise is blocked out by putting the headphones on. This recording is created using an EQ and is not an actual recording. For headphones with ANC (active noise cancellation), the playback simulates the isolation with ANC enabled.
When it matters: When the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
:
Overall Attenuation
What it is: The overall amount of environmental noise reduction in dB.
When it matters: In loud envinronments like planes, trains, offices, etc.
Good value: <-20dB
Noticeable difference: 1dB
:
-13.37 dB
Bass
What it is: The overall amount of noise isolation in the bass range (20Hz-250Hz).
When it matters: When the outside noise is bass-heavy, like in airplanes.
Good value: <-15dB
Noticeable difference: 1dB
:
0.29 dB
Mid
What it is: The overall amount of noise isolation in the mid-range (250Hz-2.5KHz).
When it matters: When the environment's noise is mid-heavy, like in an office.
Good value: <-15dB
Noticeable difference: 1dB
:
-8.22 dB
Treble
What it is: The overall amount of noise isolation in the treble range (2.5KHz-20KHz).
When it matters: When the environment's noise is treble-heavy. Although uncommon, areas with sharp sounds fall under this category.
Good value: <-30dB
Noticeable difference: 1dB
:
-32.77 dB
Self-Noise
What it is: The amount of noise created by the active electronics of the headphones (if applicable), measured from 300Hz-20KHz. Applies mostly to wireless and noise-cancelling headphones.
When it matters: If too loud, it could become distracting when listening to quiet material like podcasts and audiobooks.
Good value: <16dB
Noticeable difference: 1dB
:
17.59 dB

Poor Isolation. The Sony XB950B1 headphones don't have active noise cancellation and only isolate passively using their ear cups. They achieve no isolation in the bass range, which is poor but typical of most passive over-ear headphones. In the mid-range, they achieve 8dB of reduction which is average. In the treble range, they achieve more than 30dB of noise reduction, which is within good limits.

7.6 Leakage
What it is: The amount of sound bleeding out of the headphones.
When it matters: When the listener doesn't want people around them (in office, recording studio, etc.) to hear what is being listened to.
Score components:
Sony MDR-XB950B1 Leakage
Leakage Audio
What it is: The simulated sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal. This recording is created using an EQ and is not an actual recording.
When it matters: When you don't want people hear what you are listening to.
:
Overall Leakage @ 1ft
What it is: The amount of sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal.
When it matters: When you don't want people hear what you are listening to.
Good value: <35dB
Noticeable difference: 1dB
:
36.58 dB

The Sony XB950B1 have a good leakage performance. The significant portion of the leakage sits between 400Hz and 2KHz, which is a relatively broad range. However, the overall level of leakage is quite low. So although their leakage sounds a bit fuller than that of in-ears and earbuds, the level is quiet enough to not be audible. Unless you are blasting your music in a very quiet environment, like an elevator.

6.2

Microphone

What it is: The microphone section shows the quality of speech capture and transmission by the mic, as well as how well the microphone under test handles noisy environments.
When it matters: For your speech to be transmitted to and understood properly by the listener, the microphone needs to have a good recording quality. If the environment the microphone is being used in is noisy, a microphone with a good noise handling performance would be needed as well.
Score components:
Integrated
What it is: The microphone integrated in the ear cup or ear bud of a wireless headphone.
When it matters: For calls, gaming and voice over IP software or for any other use of the microphone.
Good value: Yes
:
Yes
In-line
What it is: The microphone inside the in-line remote of audio cables for wired and wireless headsets.
When it matters: In-line microphone are usually better than integrated mics. If you need better recording quality and noise handling for calls, gaming and voice over IP software then use the audio cable of your wired or wireless headphone if it has an inline microphone.
Good value: Yes
:
No
Boom
What it is: A typically better microphone, that's also adjustable and extends so that the mic is closer to your mouth.
When it matters: Much better recording quality and noise handling than in-line or integrated mics. Primarily used for gaming and voice over IP software.
Good value: Yes
:
No
Detachable Boom
What it is: A boom mic that is detachable from the headset.
When it matters: If you want to use your headphone outdoors without the bulk and hassle of the Boom mic.
:
N/A

The integrated microphone of the Sony XB950B1 is mediocre. In a quiet environment, speech recorded/transmitted with this mic will sound rather thin and noticeably muffled and lacking in detail. But, it will still be rather easily understandable. In noisy situations, however, it will struggle to separate speech from ambient noise, even in moderately loud environments, such as a busy street.

6.3 Recording Quality
What it is: Microphone recording quality shows how natural, neutral, extended and intelligible speech would be with the device under test, in a quiet environment.
When it matters: A microphone with a good recording quality ensures that the person listening to you would hear a full, clear, and easily understandable speech. Therefore, it is important whenever a good quality of speech transmission and intelligibility is needed.
Score components:
Sony MDR-XB950B1 Microphone Frequency Response
Recorded Speech
What it is: Actual audio recording of the headphone's microphone, recorded while placed on the dummy head, with speech being played back through the dummy head's mouth simulator.
When it matters: When a clean, full, and intelligible speech transmission is required.
:
LFE
What it is: Low-frequency extension shows how deep the bass response of the microphone is, and therefore, how deep and full your voice would sound to the listener. It is the lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: LFE is not a big factor in speech intelligibility and even speech recorded with a mic that has an LFE of 500Hz could still be easily understood. Therefore, it is mostly important if you are concerned with how deep and full your voice would be heard.
Good value: <150Hz
Noticeable difference: 30Hz
:
226.27 Hz
FR Std. Dev.
What it is: Frequency Response Standard Deviation shows how accurately and balanced sound is captured by the microphone at each frequency. FR Std. Dev. is calculated between LFE and HFE, and the rest of the spectrum is ignored.
When it matters: A good frequency response is desired when a natural and neutral speech quality is desired. As opposed to HFE which is more a metric for speech intelligibility, frequency response could be considered as a metric for a natural and neutral sound.
Good value: >3.5dB
Noticeable difference: 0.5dB
:
4.13 dB
HFE
What it is: High-frequency extension is the highest frequency at which the frequency response reaches -3dB of the target response. It shows how extended the treble response of the microphone is.
When it matters: HFE is one the most important factors in speech intelligibility. The higher the HFE, the brighter, more open, and more extended the speech quality will be which makes it a lot easier to understand by the listener.
Good value: >8KHz
Noticeable difference: 1KHz
:
3319.91 Hz
Weighted THD
What it is: The unwanted frequencies (harmonics) produced alongside the intended frequencies, which cause deformation of an output signal compared to its input.
When it matters: When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Good value: <1.5
Noticeable difference: 1.0
:
22.657
Gain
What it is: Shows how much louder the microphone can go above our reference loudness level. The gain value is reported relative to our reference level, which is 94dB at a distance of 5cm from the mouth.
When it matters: A microphone with a high gain is important when the input signal (speech) is very quiet. For example when whispering, or talking on the phone in a library.
Good value: >18dB
Noticeable difference: 3dB
:
42.61 dB

The mic has a mediocre recording quality. LFE (low-frequency extension) is at 226Hz, making speech sound a little thin. Their HFE (high-frequency extension) of 3.3KHz means that recorded/transmitted speech will lack detail and sound rather muffled. This will have a small but noticeable negative effect on the intelligibility of speech.

6.0 Noise Handling
What it is: How well the microphone is able to separate speech from background noise, so that the transmission would include more voice and less noise.
When it matters: When a clean and intelligible speech transmission is desired in a noisy situation like talking on the phone on a busy street or on the bus.
Score components:
Sony MDR-XB950B1 SpNR
Speech + Pink Noise :
Speech + Subway Noise :
SpNR
What it is: Speech to Noise Ratio is the difference in level between speech and background noise as heard by the listener
When it matters: If the microphone is going to be used in a noisy environment, it is important for it to be able to separate the speech from background noise, so the voice would be easily audible and understandable.
Good value: >24dB
Noticeable difference: 3dB
:
12.05 dB

The noise handling of the Sony XB950B1's integrated microphone is mediocre. In our SpNR test, they achieved a speech-to-noise ratio of 12dB, suggesting this microphone is best suited for quiet environments.

6.4

Active Features

What it is: Headphones with active components that require a battery. This includes noise cancelling and wireless headphones that actively reduce noise or transmit audio via a wireless connection.
When it matters: How suitable the power and wireless specifications of an active headphone will be, depending on your listening habits. The range and/or discharge time of the active headphone you select will be important if you're often on the move or have long uninterrupted listening sessions.
Score components:

The Sony MDR-XB950B1 have a decent set of active features and they're the first headphones from Sony that we've reviewed that supports the Sony | Headphones Connect app. This gives them a bit more customization options, although the app itself is slightly lacking in functionality. On the upside, they have an above average battery life but they take quite a bit of time to charge and don't have many power saving features.

6.4 Battery
What it is: The power source of your headphones. All headphones with active features have a battery that will deplete over time.
When it matters: To continue using the active features of your headphones. Some models lose features or switch off completely when the battery is drained, which limits what you can do with them until the next charge.
Battery Type
What it is: The type of battery that the headphones use. Usually AAA or embedded, Li-ion rechargeable batteries.
When it matters: When your headphones run out of power. Rechargeable batteries usually charge via the headphones Micro-USB port whereas AAA batteries have to be replaced or charged with an external device.
:
Rechargable
Battery Life
What it is: The amount of time it takes for a headphones' battery to be completely drained. Battery life will vary depending on the active features used and volume level.
When it matters: For active headphones that connect wirelessly, have noise cancellation or other audio-enhancing features, that cease to work once the battery is dead.
Good value: >10hrs
Noticeable difference: 0.5hrs
:
20 hrs
Charge Time
What it is: The amount of time your active headphones have to be connected to a power source to charge from 0 to a 100%. However, charging time will vary depending on your power source.
When it matters: To be able to use the active features of your headphones. Especially, wireless ones that completely switch off and need to be recharged when the battery is dead.
Good value: 2h or less
Noticeable difference: 0.25h
:
3.1 hrs
Power Saving Feature
What it is: A feature that turns off the headphones, after a set time, when they're not in use.
When it matters: To prolong battery life when the headphones are not being used, or if you forget to manually turn off your headphones.
:
No
Audio while charging
What it is: Some active headphones remain usable while charging. They continue to stream audio and do not disable other active features.
When it matters: This makes sure that your headphones's battery are not being drained when your relatively close to a power source. However, this means wireless headphones will need a wired connection to the power source during the charging process.
:
No
Passive Playback
What it is: Active headphones that still work when all their active features are turned off or out of power.
When it matters: If you run out of power and do not have spare AA/AAA batteries or access to a power source to recharge your headphones.
:
Yes

The battery life of the Sony MDR-XB950B1 is above average at 20 hours of continuous playback but they take a long time to charge. That and the lack of good power saving features like an auto off timer when connected to your Bluetooth source or the ability to continue playing when charging make their battery performance a bit mediocre. On the upside, they can be used even when the battery is completely depleted as long as you have the audio cable with you.

7.0 App Support
What it is: The additional app provided to enhance your listening experience. They typically deliver a set of practical features that give you more control over the sound, noise cancelling and effects that the headphones produce.
When it matters: An app with a lot of features allows you to customize your listening experience to suit your taste and preferences. For example, additions like an equalizer can give you more bass or treble and room effects can simulate a bigger Soundstage in closed back headphones.
Score components: Subjectively assigned
Sony MDR-XB950B1 App Picture
App Name : Sony| Headphones Connect
iOS : Yes
Android : Yes
Mac OS : N/A
Windows : N/A
Equalizer
What it is: Parametric, graphic or preset sound profiles that slightly alter the frequency response.
When it matters: If you want to tailor, your listening experience. Depending on what you're listening to you may want more or less bass for some tracks or more mid-range for vocals-heavy audio.
:
No
ANC control
What it is: Control over the Active noise canceling technology. This could be either a simple on/off button, and adjustable slider or even adaptive self-regulating noise cancellation.
When it matters: If you're in an environment where you need to monitor your surroundings or completely isolate yourself from ambient noise.
:
No
Mic Control : N/A
Room effects
What it is: Room effects that enhance the audio quality to make it more immersive.
When it matters: If you want to further tweak your listening experience. Adding room effects, can simulate a more spacious Soundstage or deliver a surround sound-like feel.
:
Yes
Playback control
What it is: An in-app player that gives you access to play/stop, track skipping or volume controls directly with the app.
When it matters: It's a shortcut that allows you to control your audio without leaving the application.
:
No
Button Mapping : N/A
Surround Sound : N/A

Unlike previous Sony headphones, the MDRXB950B1 has the Headphones Connect app which let you slightly personalize their sound. The app offers control over the intensity of the 'Bass Effect' feature as well as various room effects that let you cycle through preset like Arena, Club, etc... While this does give you some customization options, it feels slightly limiting, and a full equalizer would have been preferable.

6.2

Connectivity

What it is: The inputs and outputs of wired and wireless headphones, as well as their latency performance and range.
When it matters: To know how compatible your Bluetooth device, console or PC will be with your wired or wireless headset.
Score components:
  • 10% Bluetooth
  • 33% Wired
  • 10% Base/Dock
  • 22% Wireless Range
  • 25% Latency

The Sony MDR-XB950B1 are Bluetooth headphones with NFC support and a regular audio cable with no inline remote. Unfortunately, they do not have multi-device pairing or a microphone that's compatible with consoles. You can always use them wired for audio with your Xbox or PS4 controllers, but the integrated mic will not work. Their latency performance is not as bad as some of the other Bluetooth headphone but may still be a bit too high for gaming.

8.0 Bluetooth
What it is: Bluetooth support for wireless headphones.
When it matters: To connect wirelessly to Bluetooth sources like your phone, tablet, console, PC and TV.
Score components:
  • 80% Multi-Device Pairing
  • 20% NFC
  • <1% PS4 Compatible
  • <1% Xbox One Compatible
Bluetooth Version : 4.1
Multi-Device Pairing
What it is: A Bluetooth profile that allows some headphones to be simultaneously connected to multiple Bluetooth sources, and have full call and media support on both/all devices they are connected to.
When it matters: To quickly switch between your Bluetooth sources. For example, switching from your phone to your home or work PC and still have call and media support on both devices.
Good value: 2 devices.
:
No
NFC
What it is: Near Field Communication technology that allows you to quickly, pair your headphones with your Bluetooth and NFC-enabled device.
When it matters: This makes pairing with an NFC-enabled device a lot easier than the typical and often tedious hold-to-pair procedure that most wireless headphones have.
Good value: Yes
:
Yes
PS4 Compatible
What it is: Bluetooth compatibility with the PlayStation 4.
When it matters: To connect your headphones wirelessly with your PS4.
Good value: Audio + Microphone
:
No
Xbox One Compatible
What it is: Bluetooth compatibility with the Xbox One.
When it matters: To connect your headphones wirelessly with your Xbox one.
Good value: Audio + Microphone
:
No

The Sony MDR-XB950B1 headphones do not have simultaneous multi-device pairing like the Bose QuietComfort 35. But on the upside, they do support NFC which makes pairing with smartphones a bit easier.

7.2 Wired
What it is: The type and compatibility of audio cables for wired and wireless headphones.
When it matters: For all devices with a regular audio jack (line-out) and also compatibility of the in-line remote/boom microphone with consoles and Personal computers.
Score components:
  • 13% Analog
  • 9% USB
  • 26% PS4 Compatible
  • 26% Xbox One Compatible
  • 26% PC Compatible
Cable Tested : Not OS specific
Analog
What it is: A regular 1/8" TRS audio jack or a 1/4 or 1/16 TRS with a 1/8 TRS adapter.
When it matters: For all devices with a line out.
Good value: Yes
:
Yes
USB
What it is: A USB or USB adapter to connect to your devices for audio and microphone.
When it matters: A digital USB adapter usually offers a slight advantages over a regular audio jack, like a DAC, and amplifier module or software support and compatibility with PCs. However it may not be as compatible with consoles.
Good value: Yes
:
No
PS4 Compatible
What it is: PS4 compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PS4
Good value: Audio + Microphone
:
Audio Only
Xbox One Compatible
What it is: Xbox One compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your Xbox One
Good value: Audio + Microphone
:
Audio Only
PC Compatible
What it is: PC compatibility with a regular 3 or 4 pin 1/8 TRS audio cable.
When it matters: When you want to use a wired headphone with your PC.
Good value: Audio + Microphone
:
Audio Only

The Sony XB950B1 come with a regular audio cable that does not have an in-line remote/microphone or a USB adapter. They will only provide audio when used wired with consoles.

0 Base/Dock
What it is: The base station, dock or dongle transmitter of wireless headphones that receive data/audio via a proprietary frequency range.
When it matters: Knowing the inputs and outputs of the base/dock/dongle as well as its compatibility with consoles and Personal Computers. Also whether the base supports dock charging to easily recharge the headphones without any cables.
Score components:
  • 5% Optical Input
  • 22% Line In
  • 5% Line Out
  • 22% USB Input
  • 4% RCA Input
  • 9% PS4 Compatible
  • 9% Xbox One Compatible
  • 9% PC Compatible
  • 2% Power Supply
  • 13% Dock Charging
Wireless Type
What it is: The type of wireless connection used by the base station/dock to communicate with the headphones.
When it matters: For latency and range. For example Radio frequency has low latency but mediocre range when obstructed and proprietary docks have their own 2.x GHz or 5 GHz frequency which varies in performance.
:
N/A
Optical Input
What it is: Optical input for audio.
When it matters: Optical can carry a bit more data at faster speeds than typical wired connection which allows for more high quality, lossless audio.
Good value: Yes
:
N/A
Line In
What it is: The regular wired input via a 1/8" TRS audio jack.
When it matters: For any device that has a line out for audio transmission.
Good value: Yes
:
N/A
Line Out
What it is: A regular 1/8TRS audio jack output.
When it matters: If you need to share the audio source with other devices. A line out lets you connect other headphones or speakers to the dock/base station.
Good value: Yes
:
N/A
USB Input
What it is: A digital USB input instead of a typical 1/8 TRS line-in.
When it matters: A USB connection can provide both an audio input and power to the Dock or Base station.
:
N/A
RCA Input
What it is: Audio input using via an RCA connectors.
When it matters: Provides better stereo audio to the dock/base that's then transmitted to the headphones.
Good value: Yes
:
N/A
PS4 Compatible
What it is: Dock/Base station compatibility with the PlayStation 4.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Xbox One Compatible
What it is: Dock/Base station compatibility with the Xbox One.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
:
N/A
PC Compatible
What it is: Dock/Base station compatibility with your Personal Computer.
When it matters: To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value: Audio + Microphone
:
N/A
Power Supply
What it is: The connector type of the power source.
When it matters: The accessibility of the power source. For example a power supply with USB/USB-C connects to multiple devices, PC , PS4, Xbox One or even with your regular phone charger whereas a A/C adapter is less common.
Good value: USB/USB-C
:
N/A
Dock Charging
What it is: Charging the headphones via the dock/base station instead of a charging cable.
When it matters: It makes charging your headphones easier and gives you a sport to store your headphones when they are not in use.
Good value: Yes
:
N/A

The Sony XB950B1 do not have a base/dock. If you want a versatile headset with a base that you can also use wired, check out the Arctis 7 by SteelSeries.

8.4 Wireless Range
What it is: Headphones that offer a cable-free listening experience over a wireless network, typically via Bluetooth or radio frequency.
When it matters: If you don't want to be limited by the length of an audio cable. This means having the freedom to move around in your home or office with a much greater range than an audio cable could provide, especially, if the Bluetooth source is heavy or difficult to carry.
Score components:
Obstructed Range
What it is: The range that the wireless headphones can reach before dropping any audio when the Bluetooth source was placed in another room.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in an indoor environment. Although, the obstructed wireless range will slightly depend on your home or office layout.
Good value: >35ft
Noticeable difference: 5ft
:
41 ft
Line of Sight Range
What it is: The range that the wireless headphones can reach before dropping any audio when in direct line of sight of the Bluetooth device.
When it matters: If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in a large and open environment.
Good value: 170ft or more
Noticeable difference: 10ft
:
182 ft

The Sony XB950B1 have a good wireless range suitable for moderately sized offices. They rarely had any connection drops below 40ft when we left the Bluetooth source in another room. They also have a good line-of-sight range, which makes them a bit better than average if you have a fixed Bluetooth source like a PC or TV.

4.6 Latency
What it is: How long it takes for audio to play through your headphones once the audio signal has been sent from a source.
When it matters: When gaming or watching movies. High latency means you will hear the audio much later than the images you see on screen.
Score components:
Default Latency
What it is: The Base RF latency or the default sub-band coding (SBC) of most Bluetooth headphones.
When it matters: When watching videos a high latency can cause sync issues between the images you see and the audio you hear.
Good value: 50ms or less
Noticeable difference: 15ms
:
171 ms
aptX Latency
What it is: An audio coding algorithm (Codec) that improves bit rate efficiency. It reduces latency and improves sound quality over Bluetooth.
When it matters: For better sound quality if your often streaming music over Bluetooth. Also it slightly improves latency when watching videos with wireless headphones.
Good value: 50ms or less
Noticeable difference: 15ms
:
110 ms
aptX(LL) Latency
What it is: Low latency variation of aptX that significantly reduces sync issues between video and sound when using Bluetooth headphones.
When it matters: When watching videos or gaming latency is a lot more noticeable than just listening to music.
Good value: 50ms or less
Noticeable difference: 5ms
:
N/A

The Sony MDRXB950B1 perform better than most Bluetooth headphones for latency and also support aptX. Unfortunately, even with the better than average latency, they won't be the most suitable headphones for gaming or watching high frame rate videos.

In the box

Sony MDR-XB950B1 In the box Picture

  • Sony MDR-XB950B1 Headphones
  • Audio cable
  • USB cable
  • Manuals

Compared to other Headphones

Sony MDR-XB950B1 Compare Picture

The Sony MDR-XB950B1 are a well-built and premium looking headphones for bass-heads. They're wireless with a fairly long battery life and a great range. They even have a decent latency performance although there will still be some syncing issues when watching videos. Unfortunately, their bass-oriented sound can overpower instruments and vocals which won't be for everyone even when you EQ them. The earcups also do not fit as well on all listeners.

Bose QuietComfort 35

The Bose QuietComfort 35 are great noise canceling headphones that are versatile enough for most use cases. They're lightweight and have a decently well-built design but feel a bit plasticky for their price range. They also do not have an equalizer to customize their sound profile. If you're a big fan of bass-heavy music and are looking for a headphone that's not too expensive, then the Sony XB950B1 are a decent option. However, the QC35 are way better for most use cases even without an EQ. They're also better for commuting since they have one of the best ANC that we've measured.

Sony MDR-1000X

The Sony MDR-1000X are an older model that's been replaced by the WH-1000xm2. They have the same design and a similar performance but do not benefit from the customization options offered by the Sony| Headphones Connect app like the XB950B1. On the upside, they sound better out-of-the-box and are more comfortable. They also have great noise canceling so they will be better suited for commuters and more uses cases than the MDR-XB950B1.

Beats Studio Wireless

The Beats Studio Wireless have a better design than the Sony MDR-XB950B1 that's more suitable for sports but isn't as durable. They have a decent wireless range and battery life. You also can't EQ their sound profile like with the Sony's but they sound better out-of-the-box. If you want a slick looking headphone for everyday use, then the Beats will be more your vibe, but if you really like a lot of bass and a more durable design, then the Sony are a decent alternative.

JBL E55BT

The JBL E55BT are a cheaper alternative to the MDR-XB950B1. They're not as well built but deliver a more balanced sound and a more lightweight design that's more stable for sports and isn't as bulky as the Sony's. Unfortunately, they do not benefit from the customization options provided by the JBL Headphones app. This means if you're a fan of bass and want more customization options for your sound, then the MDR-XB950B1 are a decent choice but for most use cases, the E55BT perform slightly better.

Conclusion
SEE PRICE
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6.2Mixed Usage
What it is This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
Decent for mixed usage. The Sony MDR-XB950B1 don't have the most balanced sound quality or don't isolate well enough for all environments, but they have a sturdy, durable wireless design and do not leak much. This means they won't be the best headphones for critical listening or commuting in noisy environments but with their active features, they're decent enough for most use cases and with the app you can better tune the bass to your liking.
6.2Critical Listening
What it is The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
Mediocre-at-best for critical listening. They're too bass heavy, even without the Bass Effect turned on. That and the dull treble range make them sound dark and lacking in detail with instruments and vocals. They also have a relatively small soundstage due to their closed-back design. They won't be the best headphones for most critical listeners but on the upside, the Bass Effect can be further reduced via the Headphones Connect app so you may find some redeeming qualities in their sound profile.
6.4Commute/Travel
What it is How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
Average for commuting. They're well padded, wireless and have a good battery life. However, their subpar isolation is not ideal for loud environments and may let some of the noise of your daily commute seep into your audio.
6.4Sports/Fitness
What it is How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
Average for sports. They're not sports-oriented headphones so they're a bit too bulky and unstable for exercising with. But they have a wireless design and efficient controls which are useful if you do decide to use them while jogging.
6.4Office
What it is How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
Decent for office use. The Sony MDR-XB950B1 do not leak much even at higher volumes so you won't distract your colleagues. Unfortunately, they do not block a lot of noise so they won't be the best headphones for loud and noisy workspaces. They can passively block more noise if you can get a good fit with the ear cups.
5.5Home Theater
Score components:
Mediocre for home theater use. They have fairly high latency which won't be ideal for watching movies. It's a bit better if you have an aptX ready device. However, they're not the most comfortable headphones to wear for long periods of time.
5.3Gaming
Score components:
Sub-par for gaming. The Sony XB950B1 have a mediocre mic that isn't compatible with consoles and quite a bit of latency which is not really suitable for gaming. They also tend to make your ears a little warm during long gaming sessions and are not the most comfortable headphones to wear for extended gaming sessions.

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