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

Sennheiser HD1 In-Ear / Momentum In-Ear
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
6.7
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:
6.6
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:
6.9
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:
7.3
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:
6.5
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:
5.8
Home Theater
Score components:
6.5
Gaming
Score components:
Type : In-ear
Enclosure : Closed-Back
Wireless : No
Noise-Cancelling : No
Mic : Yes
Transducer : Dynamic

The Sennheiser HD1 In-Ear are average mixed usage wired in-ears, with a portable design. They have a great case and easily fit into your pockets. They're stable, and they don't leak, so you won't distract anyone around you. However, their sound quality is not the best for more critical listeners, and the in-ear fit can be uncomfortable for some.

Test Results
Design 7.4
Sound 6.4
Isolation 8.3
Microphone 6.6
Active Features 0
Connectivity 5.3
Pros
  • Minimal leakage.
  • Decent passive isolation.
  • Portable design with a great case.
Cons
  • Overly bass-heavy audio reproduction.
  • In-ear design not always comfortable.
Update 2/16/2018: Converted to Test Bench 1.2.
Update 10/2/2017: 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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7.4

Design

Score components:
Sennheiser Momentum In-Ear Design Picture

The Sennheiser HD1 In-Ear feel high-end and durable but look a bit bland. They have the typical in-ear design and fit, so they may not be the most comfortable headphones for everyone. Thankfully, the cables are decently rubberized, and the earbud tips are flexible enough to deliver a stable fit that's good for jogging or running. They're lightweight, super portable, and come with a great case that will prevent them from getting damaged. 

Style
Sennheiser Momentum In-Ear Design Picture 2

The Sennheiser Momentum In-Ear have a stylish red and black color scheme but do not really stand out design-wise, compared to other in-ear headphones. They have relatively small earbuds that do not protrude outwards when in your ears. And the rubberized cables are slightly flat, which gives them a more well-crafted and somewhat premium appeal. However, they still look a bit bland.

6.5 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
Sennheiser Momentum In-Ear Comfort Picture
Weight : 0.03 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.
:
0 lbs

The Sennheiser HD1 In-Ear have the typical in-ear fit, which may not be comfortable for everyone. They come with several tip sizes but no foam or special tips to help with a better fit. On the upside, the tip material is quite flexible, and if you're used to in-ear models, these headphones shouldn't feel too different.

7.4 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.
Sennheiser Momentum In-Ear Controls Picture
Ease of use : Above-average
Feedback : Good
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 : No

The buttons on the in-line remote provide good tactile feedback and are fairly easy to use. They offer call/music, track skipping, and volume control but they're a bit small. However, they're sufficiently well spaced out and shouldn't be too difficult to use in most situations.

9.2 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:
Sennheiser Momentum In-Ear Breathability After Picture
Avg.Temp.Difference : 0.8 C

The Sennheiser HD1 In-Ear, like most in-ear/earbud designs, are very breathable headphones. They trap a bit of heat within your ear canal but won't make you sweat more than usual since they do not cover your outer ear. It's a negligible temperature difference even during more intense exercises, which makes them a decent option for sports.

9.1 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:
Sennheiser Momentum In-Ear Portability Picture
L : 2.13 "
W : 2.13 "
H : 0.75 "
Volume : 3.4 Cu. Inches
Stand required : N/A

Like most in-ear models, these headphones are highly portable. They will easily fit into bags and thanks to the added cable winder, they're easy to manage and safely store in your pockets. If you're often out and about and need to carry your headphones on your person, the Momentum In-Ear shouldn't be much of a hassle, and they also come with an excellent case.

7.5 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
Sennheiser Momentum In-Ear Case Picture
Type : Hard case
L : 3.88 "
W : 3.88 "
H : 1.31 "
Volume : 19.7 Cu. Inches

These headphones come with a sturdy, fabric covered hard case that's reinforced by the plastic cable winder. This also helps to neatly store the headphones within the case, which will easily protect the headphones from physical and minor water damage as well as regular wear and tear.

7.0 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
Sennheiser Momentum In-Ear Build Quality Picture

The Sennheiser HD1 In-Ear feel moderately durable. The cables are decently thick and rubberized, and they're slightly flat to prevent them from getting tangled easily. The in-line control module is also well put together and feels relatively dense. However, where the audio cables connect to the ear buds isn't strengthened by any additional rubber to prevent regular wear and tear. They also do not detach from the ear buds like some of the more expensive in-ear models. This means if they're accidentally damaged the cables will not be replaceable.

7.0 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
Sennheiser Momentum In-Ear Stability Picture

These headphones are quite stable. The in-ear fit buries the ear buds relatively deep within the ear canal. The tips are also very flexible, so they fill and conform to the shape of your ear canal pretty well so that they're not easily dislodged during casual listening sessions. They're sufficiently stable to jog with, but the lack of stability tips means a sharp tug on the audio cable will quickly pull the ear buds out of your ears. They're decent for sports but might not be the best under strenuous exercise conditions.

Cable
Sennheiser Momentum In-Ear Cable Picture
Detachable : No
Length : 4.6 ft
Connection : 1/8" TRRS

These headphones do not come with any additional cables.

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Headshots 1
Headshots 2
6.4

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.)
Sennheiser Momentum In-Ear Frequency Response

The Sennheiser HD1 In-Ear are mediocre sounding closed-back in-ear headphones. They have a deep, powerful, and consistent bass, and well-balanced mid-range, and an even treble. However, their upper bass and lower mid regions sound a bit boomy and cluttered, making vocals a bit thick sounding. Also, their treble lacks a bit of detail and presence and could sound a bit sharp and piercing on S and T sounds. Also, like most other headphones, especially in-ears, they don't have a large and speaker-like soundstage.

7.8 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:
Sennheiser Momentum In-Ear 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
:
3.19 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
:
1.04 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
:
2.55 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
:
5.22 dB

The Sennheiser Momentum In-Ear have a very good bass. LFE (low-frequency extension) is at 10Hz, which is excellent. Low-bass, responsible for the thump and rumble common to bass-heavy music at within 1dB of our neutral target, meaning they produce just the right amount of sub-bass. However, mid-bass, responsible for the body of bass guitars and the punch of kick drums is hyped by 2.5dB. Also, high-bass, responsible for warmth is overemphasized by more than 5dB, which makes the overall sound of these headphones rather boomy and muddy.

7.9 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:
Sennheiser Momentum In-Ear 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
:
2.78 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
:
3.09 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
:
-2.35 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
:
-2.08 dB

The mid-range performance is very good. The bump in low-mid is actually the continuation of the high-bass overemphasis. This makes the vocals and lead instruments slightly thick, and makes the overall mix a bit cluttered. The underemphasis in mid-mid and high-mid means the mid-range of the HD1 In-Ear sounds a bit recessed, that is, the vocals and lead instruments are nudged towards the back of the mix.

6.0 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:
Sennheiser Momentum In-Ear 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
:
5.1 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
:
-5.45 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
:
0.63 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
:
-1.69 dB

The treble range performance is mediocre. The broad 5dB dip in low-treble negatively affects the detail and presence of vocals and lead instruments. On the other hand, the peaks at 7KHz and 10KHz make the vocals and cymbals a bit sibilant. That is, sharp and piercing on S and T sounds.

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:
9.5 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:
Sennheiser Momentum In-Ear Consistency L Sennheiser Momentum In-Ear 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
:
0.11 dB

The frequency response consistency of the Sennheiser HD1 In-Ear is excellent. Assuming the user is able to achieve a proper fit and an air-tight seal using the assortment of tips that come with the headphones, they should be able to get consistent bass and treble delivery every time they use the headphones.

9.3 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.
Sennheiser Momentum In-Ear Group Delay Sennheiser Momentum In-Ear 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
:
0.11
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
:
0.33
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
:
1.07
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
:
1.05

The imaging performance of the HD1 In-Ear is excellent. Their weighted group delay is 0.11, which is very low. The GD graph also shows that the group delay never crosses the audibility threshold. This ensures a tight bass and a transparent treble reproduction. Additionally, the L/R drivers of our test unit were exceptionally well-matched, which is important for the accurate placement and localization of objects (instruments, voice, footsteps), in the stereo image.

1.0 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.
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
:
N/A
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
:
N/A
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
:
N/A
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
:
2.2
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
:
0.7
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
:
-0.13 dB

Like most other in-ears, the soundstage of the Sennheiser Momentum In-Ear is poor. This is because in-ears bypass the pinna (outer ear), and don't interact with it, while activating the resonances of the pinna is one of the key factors in creating a speaker-like and out-of-head soundstage. Also, because of their closed-back design, their soundstage tends to be less open than that of open-back headphones.

9.1 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:
Sennheiser Momentum In-Ear 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
:
0.24
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
:
0.135

The harmonic distortion performance of the HD1 In-Ear is excellent. The overall amount of THD is very low, especially in the bass range. Also, for the most of the spectrum, the 100dB SPL pass shows less harmonic distortion than the 90dB SPL pass. This is most likely due to the increased flexibility of the driver under heavier loads. However, the spike around 1.2KHz could make the sound of the region a bit of harsh and impure.

8.3

Isolation

Score components:

The Sennheiser HD1 In-Ear have a passive seal that prevents a significant amount of noise from seeping into your audio. They're not quite as good as some of the noise canceling models, but at decently high volumes you shouldn't be distracted by the hustle and bustle of a regular commute. They also barely leak so you can play your music at those higher volumes and not worry about being heard by the people around you.

7.8 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:
Sennheiser Momentum In-Ear Noise Isolation
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
:
-22.37 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
:
-6.41 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
:
-19.12 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
:
-45.22 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
:
0 dB

Decent isolation. Although these in-ears isolate only passively, their tight fit creates an impressive degree of isolation for a passive device. In the bass range, where the rumble of airplane and bus engines sits, they isolate by about 6dB, which is inadequate. The weak point with these headphones seem to the 200Hz range. However, in the mid-range, important for blocking out speech, they achieved more than 19dB of isolation, which is quite good. In the treble range, occupied by sharp sounds like S and Ts, they isolate by more than 45dB, which is excellent.

9.4 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:
Sennheiser Momentum In-Ear Leakage
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
:
24.78 dB

Excellent leakage performance. The closed-back and tight fit of these in-ears don't let much sound out of them. The significant portion of their leakage is between 1KHz and 8KHz, which is broad, but the overall level of the leakage is so low that makes the other variable rather irrelevant. With the music at 100dB SPL, the leakage at 1 foot away averages at about 25dB SPL while peaking at 33dB SPL, which is way below the noise floor of an average office.

6.6

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
:
No
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
:
Yes
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 in-line microphone of the Sennheiser HD1 In-Ear has an average performance. In quiet environments, speech recorded or transmitted with this mic sounds noticeably thin and lacking a bit of detail and presence. However, it will be open, airy, and intelligible. In noisy situations, this microphone won't be able to fully separate speech from background noise even in moderately loud places, like a busy street.

7.1 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:
Sennheiser Momentum In-Ear 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
:
479.46 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
:
3.08 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
:
19611.72 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
:
1.099
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
:
22.57 dB

The microphone of the HD1 In-Ear has a decent recording quality. The LFE (low-frequency extension) is at 480Hz, indicating the speech recorded/transmitted with this mic will sound noticeably thin. The HFE (high-frequency extension) of 19.7KHz is very good and results in a open and airy transmission. However, the dip surrounding 5KHz negatively affects the detail and presence of speech. It'll still be quite intelligible though, since speech intelligibility is mostly dependent on the 500Hz-4KHz range.

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:
Sennheiser Momentum In-Ear 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
:
12.23 dB

The noise handling of the microphone is mediocre. In our SpNR test, it achieved a speech-to-noise ratio of 12dB. This means they are best suited for quiet environments as they won't be able to fully separate speech from ambient noise even in moderately loud places.

0

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 Sennheiser HD1 In-Ear have no active components and therefore do not require a battery. They also have no app support for added customization options.

N/A 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.
:
N/A
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
:
N/A
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
:
N/A
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.
:
N/A
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.
:
N/A
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.
:
N/A

The Sennheiser Momentum In-Ear are passive in-ears with no active components that need power so they do not have a battery.

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
App Name : N/A
iOS : N/A
Android : N/A
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.
:
N/A
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.
:
N/A
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.
:
N/A
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.
:
N/A
Button Mapping : N/A
Surround Sound : N/A

These headphones do not have any app support.

5.3

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 Sennheiser Momentum In-Ear are passive, wired headphones, that only connect to other devices via their 1/8" TRRS audio cable. On the upside,  the non-detachable iOS-specific audio cable has no latency, and the inline mic is only compatible with the PS4 controller and PCs with the right jack or headset adapter but not with the Xbox One. Unfortunately, since they are wired, they will not have the convenient range of wireless headphones.

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 : N/A
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.
:
N/A
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
:
N/A
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
:
N/A
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
:
N/A

These in-ears are wired and do not have a Bluetooth connection. If you want a versatile wireless Bluetooth headphone, then consider the Samsung Gear IconX, Jaybird X3 or the BeatsX.

8.5 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 : iOS
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 + Microphone
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 + Microphone

The Sennheiser HD1 In-Ear have a 1/8'TRRS audio cable with an inline remote microphone that's compatible with the PS4 and PCs if you have a headset adapter or a 3-pin audio jack like on most tablets, laptops and phones. Unfortunately, since it is an iOS-specific cable it will not have full functionality on Android phones and will not have mic support with the Xbox One controller.

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 HD1 in-ears do not have a dock. If you need a headset with a dock that also has a wired connection for gaming or watching movies, then consider the SteelSeries Arctis 7.

0 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
:
N/A
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
:
N/A

The Sennheiser Momentum In-Ear headphones are wired and do not have a wireless range.

10 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
:
0 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
:
N/A
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

Like most wired headsets, the HD1 in-ear have negligible latency. They are a suitable option for gaming and watching movies, but they are limited by the relatively short range of their audio cable.

In the box

Sennheiser Momentum In-Ear In the box Picture

  • Sennheiser Momentum In-Ear Headphones
  • Earbud tips (x3 sizes)
  • Carrying case
  • Manual

Compared to other Headphones

Sennheiser Momentum In-Ear Compare Picture

The Sennheiser HD1 In-Ear do not have the best sound quality for critical listening. But on the upside, they block enough noise to be a suitable option for commuting and they will easily fit into your pockets so you can have them on you at all times. They're also sufficiently stable for sports and working out although they won't be as good as some of the competing in-ear models below.

1More Triple Driver In-Ear

The 1More Triple Driver in-ear are a slightly better headphone than the Sennheiser HD1 In-Ear. The 1Mores have a more durable build quality than the Sennheisers. They also come with more tip sizes, so they will fit better and more comfortably than the HD1 In-Ear. The 1Mores also have a better sound and a universal in-line remote that will work with most devices unlike the HD1's OS specific audio cable. On the upside, the HD1 have slightly better isolation and a unique look that some may prefer over the Triple Drivers.

Bose SoundTrue Ultra In-Ear

The Bose SoundTrue Ultra In-Ear are better, wired headphones than the Sennheiser HD1 In-Ear. The Bose have a more comfortable earbud design that most will prefer over the fit of the HD1. The Bose also have a better-balanced sound and a more stable design for sports. On the other hand, the HD1 in-ear have a bit more isolation in loud, noisy environments although not by much. They also have an easier to use in-line remote than the Bose.

Jaybird X3

The Jaybird X3 are a better option than the Sennheiser HD1 in-ear if you want to go wireless. The X3 has better build quality, a more balanced sound that you can EQ thanks to their companion app, and they have a better range since they are wireless. However, the HD1 do better for watching movies since their wired design has no latency. They also have not battery life since they are completely passive so they will always work as long as you have a headphone jack.

Shure SE215

The Sennheiser Momentum In-Ear are a slightly better and more versatile headphone than the Shure SE215. The Shures have a better sound quality overall, and they're more comfortable thanks to the angled earbuds. They also have a much more durable build quality than the HD1 In-Ear. However, the HD1 In-Ear have an in-line remote, which provides control for iOS devices and has a microphone for taking calls, making them more versatile for everyday casual use. They also come with a better case than the Shures and have a slightly more compact design.

KZ ZS-10

The Sennheiser Momentum In-Ear are a slightly better and more versatile option than the KZ ZS-10 with no mic. The KZ have a better sound quality, they're more comfortable and they're a lot more durable thanks to the good build quality and replaceable cable. The HD1 In-Ear however, have an in-line remote, which provides control for iOS devices and has a microphone for taking calls, making them more versatile for everyday casual use. They also come with a case, have a slightly more compact design than the KZ ZS10. On the upside, if you get the mic variant of the KZ, they would be the better headset overall.

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Conclusion
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6.7Mixed 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:
The Sennheiser Momentum In-Ear are decent mixed usage headphones. They do well in loud environments for passive headphones, they're easy to carry around on your person and come with a great case. They also feel durable enough to last a relatively long time. Unfortunately, their poorly balanced, bass-heavy sound might be a deal breaker for some.
6.6Critical 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:
Subpar for critical listening. The small and closed-back in-ear design means they won't have the most spacious soundstage. That combined with their poorly balanced sound that favors a deep bass over instruments and vocals makes them ill-suited for pure critical listening.
6.9Commute/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:
Decent for commuting. They're lightweight, ultra portable headphones that passively block a lot of noise. They won't be the best in very loud environments but they can handle the level of noise of a busy commute.
7.3Sports/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:
Above-average for sports use. Although they're not as stable as some of the other in-ears, they're compact lightweight and decently comfortable. However, they do not have the best control scheme, and since they're wired, they might get yanked out of your ears relatively easily if the cable gets hooked by something.
6.5Office
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:
Above-average for office use. They prevent a fair bit of noise from entering your audio. They also barely leak so they won't distract your colleagues in quieter environments.
5.8Home Theater
Score components:
Average for home theater use. They have no latency but a relatively short audio cable. They can be a good option for watching videos on a tablet or PC but won't have the range to watch TV from your couch. They're also not the most comfortable headphones to watch long movies.
6.5Gaming
Score components:
Average for gaming. The Sennheiser Momentum In-Ear have a wired connection, so they have negligible latency which is suitable for gaming. They also have a decent microphone that's compatible with consoles and PCs. Unfortunately, they sound overly bass-heavy and lack a good app to customize their sound profile like most gaming headsets. Their in-ear fit also won't be as comfortable for all listeners, especially during long gaming sessions.

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