The Sennheiser HD1 On-Ear are well built but mediocre wired on-ears for most use cases. They have a decent but slightly uneven sound quality that won't be ideal for more critical listeners but should be good enough for most. They have a sturdy build quality like the rest of the HD1 lineup but their on-ear fit won't be as comfortable for everyone. They also do not block a lot of noise so they won't be the ideal headphones to use in loud, noisy environments.
The Sennheiser HD1 On-Ear have the same look and feel as the HD1 Over-Ear but in a smaller more portable on-ear format. They feel sturdy and durable and have a fairly easy to use controls scheme. Unfortunately, they lack padding on the headband and small on-ear cups are not the most comfortable for everyone. Also, they're not the most stable headphones for sports and physical activity so they won't be a good choice for running or working out.
The Sennheiser HD1 On-Ear are a more compact version of the HD1 Over-Ear, and keep the same old-school design language and color scheme. They have dark gray oval ear cups with black padding, covered in a suede-like, soft fabric. The metal headband is covered with hard faux leather. They also come in a couple color variants to better match your style and preference.
The Sennheiser HD1 On-Ear are relatively comfortable. The on-ear cups are well padded and covered in a soft fabric that feels nice on the skin. Unfortunately, the on-ear design may not be ideal for everybody and the lack of padding on the headband further reduces their comfortability.
The Sennheiser HD1 On-Ear deliver a solid button layout with decent functionality. The inline cable includes volume controls and a multi-purpose call/music button that allows you to for play, stop and skip tracks. The buttons also provide good feedback and are easy to find by touch alone.
The Sennheiser Momentum 2.0 On-Ear are a bit more breathable than most over-ears. They do not fully cover the ear like the HD1 Over-Ear and therefore obstruct less airflow. This means you should be able to wear these headphones for a little longer than with the over-ears but comfort and fit will be a bigger deciding factor.
These headphones have a moderately portable design. They fold up for easier transport and take up less space. However, they are on the larger side for on-ear headphones, and although they would fit relatively comfortably in a backpack or handbag, it will not fit in most pockets.
The Sennheiser HD1 On-Ear, like the HD1 Over-Ear and the HD1 Wireless, have the same soft case that will protect the headphones from scratches and will fit all the gear that is provided with headphone. Unfortunately, the soft case will not protect the headphones much, from hard falls and impacts like a hard case would.
Good build quality. The Sennheiser HD1 On-Ear have a sturdy metal headband that feels durable. The ear cups are dense enough to withstand a couple of drops without breaking; the overall build quality and design feel fairly high-end and premium. Unfortunately, the thin cabling connecting the ear cups is exposed and susceptible to damage from wear and tear.
The Sennheiser Momentum 2.0 On-Ear are decently stable headphones. They maintain their position during casual listening sessions. Unfortunately, they're not stable enough for sports or high-intensity activities like running and jumping. Their audio cable is detachable but can be locked into the ear cups. This means, that if the cable is locked and gets hooked by something in your environment, the headphones will be pulled off your head, unlike the wireless model.
The Sennheiser HD1 On-Ear are an average sounding pair of closed-back on-ear headphones. They have a consistent, deep and powerful bass, a good and even mid-range, and an average treble. However, their bass is a bit heavy on the heavy side, which fans of heavy-bass may like, their mid-range is noticeably thin and recessed especially on vocals, and their treble lacks a bit of detail and could sound a bit sharp on S and T sounds. Overall, they are a good choice for a wide variety of genres especially bass-heavy music, but not the ideal choice for vocal-centric music.
The bass of the Sennheiser HD1 On-Ear is very good. The LFE (low-frequency extension) is at 10Hz, which is excellent. Overall, the bass response is flat and even, but consistently over our neutral target by about 2.5dB. This results in a deep and extended bass which is slightly hyped and on the heavy side, which fans of heavy-bass my like.
The Sennheiser HD1 On-Ear have a good bass performance. The response throughout the range is quite even, but the broad 5dB recess centered around 500Hz nudges vocals and lead instruments towards the back of the mix by giving more emphasis to the bass and treble regions. It will also slightly thin out the vocals and lead instruments.
The treble range performance is about average. The overall response is rather uneven, and the dip centered around 4KHz negatively affect the detail and presence of vocals and lead instruments. The peak around 9KHz, makes the S and Ts a bit sharp, especially for those with sensitive ears. This will be mostly noticeable on vocals and cymbals.
The Sennheiser Momentum 2.0 On-Ear have a very good frequency response consistency. The consistency of their bass delivery across our 5 human subjects is above-average. Our measurements shows that if a proper fit/seal is achieved, the maximum deviation at 20Hz will be less than 3dB which is negligible. However, without a proper fit/seal, the user may experience a noticeable drop in bass. These headphones are even more consistent in the treble range, especially below 10KHz. This is most likely due to their small ear cups and on-ear design which makes the possible variations in positioning and placement across multiple re-seats quite limited.
The imaging is very good. Their weighted group delay is at 0.19, which is very low. The GD graph also shows that the entire group delay response is below the audibility threshold. This ensures a tight bass and a transparent treble reproduction. Also, the L/R drivers of our test unit were well-matched in frequency, amplitude, and phase response. This is important for accurate placement and localization of objects, such as footsteps and instruments, in the stereo field.
The soundstage of the Momentum 2.0 On-Ear is poor. These headphones don't interact with the pinna, which is due to their on-ear design. This can also be seen in their PRTF graph where there is very little activation. This, and their open-back design, results in a soundstage that will be perceived as small and located inside the listener's head.
The harmonic distortion performance is mediocre. The amount of THD produce in the bass range, is rather elevated, especially in the upper bass region. Also, the spike in THD around 4KHz could make the sound of the region a bit harsh and impure.
The Sennheiser Momentum 2.0 On-Ear do not have active noise cancellation like the HD1 Over-Ear Wireless. Only the passive isolation provided by the seal of the earcups prevents ambient noise from seeping into your audio. Unfortunately, the small ear cups do not seal the ears well enough to be a good option in loud environments. The distractions and ambient noise from a public transit while commuting or from your colleagues in a lively office will be audible, even when playing a little music. Unfortunately, since they also leak a bit, you won't be able to mask more ambient noise by playing your music at higher volumes without distracting those around you, especially in quieter conditions.
The Sennheiser Momentum 2.0 On-Ear have a sub-par isolation performance. These headphones don't have active noise cancelling and therefore don't provide any isolation in the bass range. This means they will let in all the low rumbling noises of airplane and bus engines. In the mid-range, which is important for blocking out speech, they provide an inadequate 4dB of isolation. In the treble range, occupied by sharp sounds like S and Ts, they isolate by more than 19dB, which is decent.
The leakage performance of the HD1 On-Ear is sub-par. The significant portion of the leakage is spread between 500Hz and 4KHz, which is a relatively broad range. The overall level of the leakage is relatively loud too. With the music at 100dB SPL, the leakage at 1 foot away averages at 46dB SPL and peaks at 62dB SPL which is noticeably above the noise floor of an average office.
The Sennheiser HD1 On-Ear have an average microphone. In quiet environments, speech recorded or transmitted with this mic sound relatively thin and lacking in presence, but it will be quite intelligible and open. In noisy situations, it will struggle to fully separate speech from background noise even in moderately loud environments, like a busy street.
The HD1 On-Ear's microphone has a decent recording quality. The LFE (low-frequency extension) of 473Hz indicates a recorded/transmitted speech that is noticeably thin. The HFE (high-frequency extension) of 15KHz is quite extended, suggesting an airy and open sound. However, the dip around 5Khz, negatively affects the detail and presence of speech, but it will still be easily intelligible.
The microphone of the HD1 On-Ear is mediocre at noise handling. They achieved a speech-to-noise ratio of 13dB in our SpNR test. This means they are best suited for quiet environments, since they will struggle to fully separate speech from ambient noise even in moderately loud situations.
The Sennheiser HD1 On-Ear have no active features and therefore do not require a battery. They also do not have a dedicated app or software for added customization options.
These are passive headphones with no active components and no battery.
The headphones do not have a dedicated, compatible app for added customization.
The Sennheiser HD1 On-Ear only have a wired connection. They have practically no latency for watching movies and videos but do not have the convenient range of a wireless headphone. On the upside, their audio cable does come with an in-line remote and mic that will work with your PS4 controller but not with the Xbox since the cable is IOS specific.
These headphones are wired and do not have a Bluetooth connection. If you want a good Bluetooth headset for more casual use, check out the Plantronics BackBeat Pro 2.
These headphones come with a 1/8" TRRS audio cable with an in-line microphone that's compatible with the, PS4 and iOS devices but not the Xbox One. They will only provide audio when connected to your Xbox controller and will need a headset adapter or a compatible headphone jack to provide microphone support with your PC or tablet.
These headphones do not have a wireless range since they're wired. If you want a good wireless headset for critical listening, consider the Sony WH-1000XM2.
These headphones do not have a wireless range since they're wired. If you want a good wireless headset for critical listening, consider the Bose QuietComfort 35 II.
The Sennheiser HD1 On-Ear are well-built headphones with decent audio reproduction. They can be a little boomy and slightly sharp on some higher frequencies but sound good enough for most casual listeners. Their lightweight yet sturdy design feels durable thanks to the metal and dense plastic used for the frame and ear cups. Unfortunately, they're not the best sounding or most comfortable on-ears we've tested, especially when compared to some of the headphones below.
The Audio-Technica ATH-M50x are a better headphone than the Sennheiser HD1 On-Ear. The ATH-M50x have a more comfortable over-ear fit than the Sennheiser. They're also better built and a have a much better sound quality that delivers a more powerful bass without drowning instruments and vocals or sounding boomy and cluttered like the Sennehisers. On the upside, the HD1 on-ear are a bit more portable and easier to carry around. They also come with an in-line remote which makes them a bit more suitable to use with your phone while commuting even if their isolation performance is not great.
The Bose QuietComfort 35 II are a much better headphone than the Sennheiser HD1 On-Ear. However, since the Bose are wireless and noise canceling, they're not really comparable to the Sennheisers. The QC35 II are a lot more suitable for commuting and traveling than the HD1 On-Ear since they have better noise isolation thanks to their ANC feature. They also have a more range than the HD1 since they're wireless, and they sound better with a more balanced representation of the treble ranges. The Bose are also a lot more comfortable too. On the other hand, since the HD1 are wired, so they have no latency when watching videos. However, you can also use the Bose with the provided audio cable for the same use case.
The Sennheiser PXC 550 Wireless are a better headset overall than the Sennheiser HD1 On-Ear, but since the HD1 are wired-only headphones, you cannot make a direct comparison. The PXC 550 are more comfortable and have a lot more features like a customizable sound and noise cancellation. This makes them more versatile for most use cases and suitable for different environments, unlike the Sennheisers. They also sound better out- of the box but on the other hand, the HD1 on-ear are wired, so they have no latency when watching videos. They're also a bit more compact and portable than the PXC 550 wireless. However, you can also use the Bose with the provided audio cable for the same use case.
The Sony WH-1000XM2 are a much better headphone than the Sennheiser HD1 On-Ear, but they're also wireless and noise canceling which is not as comparable. The WH-1000XM2 are more suitable for commuting and traveling than the HD1 On-Ear since they are noise canceling and the HD1 are not. The Sonys also have a lot more features like a customizable EQ, codec options, and room effects. On the other hand, since the HD1 on-ear are wired, they have no latency when watching videos. They're also a bit more compact and portable than the Sonys.