Reviewed on Mar 02, 2018


Usage Ratings - Version 1.3.1
Mixed Usage
Neutral Sound
Wireless Gaming
Wired Gaming
Phone Call
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
Isolation 5.8
Microphone 6.2
Active Features 7.2
Connectivity 6.9
  • Sturdy and durable build.
  • Easy-to-use and efficient controls.
  • Below-average noise isolation.
  • Overly bass-heavy sound quality.
  1. Update 11/21/2019: Converted to Test Bench 1.3.1.
  2. Update 11/6/2019: Converted to Test Bench 1.3.
  3. Update 2/16/2018: Converted to Test Bench 1.2.
  4. Update 9/28/2017: The microphone has been tested with our new methodology, as explained here
  5. Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.

Check Price



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.


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
Weight : 0.6 lbs
Clamping Force
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
OS Compatibility
Not OS specific
Ease of use : Decent
Feedback : Okay
Call/Music Control : Yes
Volume Control : Yes
Microphone Control : No
Channel Mixing
Noise Canceling Control : 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
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
L : 7.4 "
W : 7.1 "
H : 1.9 "
Volume : 102 Cu. Inches
Transmitter 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. Unlike the Skullcandy Hesh 3, 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
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

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

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.

Headshots 1
Headshots 2


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.

Sound Profile
Bass Amount
5.44 db
Treble Amount
-7.41 db
6.8 Frequency Response Consistency
Avg. Std. Deviation
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).

5.1 Bass Accuracy
Std. Err.
6.94 dB
Low-Frequency Extension
10 Hz
7.58 dB
8.08 dB
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 Accuracy
Std. Err.
1.89 dB
-0.74 dB
1.73 dB
-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 Accuracy
Std. Err.
8.41 dB
-7.28 dB
-8.49 dB
-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.

6.3 Peaks/Dips
2.22 db
2.62 db
8.0 Imaging
Weighted Group Delay
Weighted Amplitude Mismatch
Weighted Frequency Mismatch
Weighted Phase Mismatch

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.

5.3 Soundstage
PRTF Accuracy (Std. Dev.)
2.88 dB
PRTF Size (Avg.)
3.14 dB
PRTF Distance
9.66 dB
Acoustic Space Excitation

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.

7.0 Weighted Harmonic Distortion
WHD @ 90
WHD @ 100


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.

5.0 Noise Isolation
Isolation Audio
Overall Attenuation
-13.37 dB
0.29 dB
-8.22 dB
-32.77 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.

7.5 Leakage
Leakage Audio
Overall Leakage @ 1ft
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.



Detachable Boom

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.

6.4 Recording Quality
Recorded Speech
226.27 Hz
FR Std. Dev.
4.13 dB
3319.91 Hz
Weighted THD
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
Speech + Pink Noise :
Speech + Subway Noise :
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.


Active Features

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.

7.3 Battery
Battery Type
Continuous Battery Life
20 hrs
Additional Charges
Total Battery Life
20 hrs
Charge Time
3.1 hrs
Power Saving Feature
Audio while charging
Passive Playback
Charging Port : micro-USB

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
App Name : Sony| Headphones Connect
iOS : Yes
Android : Yes
macOS : N/A
Windows : N/A
ANC control
Mic Control : N/A
Room effects
Playback control
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.



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.

7.7 Bluetooth
Bluetooth Version
Multi-Device Pairing
NFC Pairing
Line of Sight Range
182 ft
Default Latency
171 ms
aptX Latency
110 ms
aptX(LL) Latency

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.

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.

0 Non-Bluetooth Wireless
Non-BT Line of Sight Range
Non-BT Latency
9.5 Wired
Analog Audio
USB Audio
Detachable : Yes
Length : 4.1 ft
Connection : 1/8" TRS
Wired Latency
0 ms

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.

PC / PS4 Compatibility
PC / PS4 Analog
Audio Only
PC / PS4 Wired USB
PC / PS4 Non-BT Wireless
Xbox One Compatibility
Xbox One Analog
Audio Only
Xbox One Wired USB
Xbox One Wireless
0 Base/Dock
USB Input
Line In
Line Out
Optical Input
RCA Input
Dock Charging
Power Supply

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.

In the box

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

Compared to other Headphones

The Sony MDR-XB950B1 are a well-built and premium looking headphones for bass-heads (check our recommendations for the best headphones for bass). 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. See our recommendations for the best wireless headphones.

6.3 Mixed Usage

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.

5.9 Neutral Sound

Mediocre-at-best for neutral 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 neutral 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.

6.5 Commute/Travel

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.

6.6 Sports/Fitness

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.

6.3 Office

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.

5.2 Wireless Gaming

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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