Sennheiser HD 400s Review

Sennheiser HD 400S – Review

Sennheiser HD 400S – Review

Sennheiser is one of the most consistent brands in terms of headphone quality. They have options for every style and price range, with one of their best-selling lines being the budget-friendly HD line. Today, I’m going to be looking at the HD 400S ($69.95), a pair of budget over-ear closed-back headphones designed to give that notorious Sennheiser quality at a reasonable price.

Sennheiser HD 400S Folded

What’s in the Box

  • HD 400S around-ear headphones
  • RCS 400 detachable single-sided cable with 1-button remote and 3.5 mm angled plug

HD 400S band

Look and Feel

The packaging and the build on the HD 400S is straightforward. You get everything you need and nothing you don’t need. The headphones are a simple, black matte finish with the Sennheiser logo tastefully added. The detachable cable has a small control unit standard on most modern headphones. The headphones are very comfortable and feel durable enough considering their price range. It also has R/L labeling, which is always greatly appreciated.


One of the main considerations Sennheiser had for the HD 400S was its context of use. These headphones have a very low impedance, making them perfect for mobile devices that might not have the power to drive more resistant headphones. The driver is still of Sennheiser’s own design and can balance clarity with power. The detachable cable features a control unit with a built-in mic of excellent quality, especially for calls.

The Sennheiser HD 400S has a frequency response of 18 Hz – 20 kHz and an impedance of 18 Ohms.

Headphone Earcup closeup


The HD 400S provides a reasonable amount of space and dimension. While it may not have the dimension and versatility of higher-priced models, it still has a great soundstage for something under $100. The isolation is also above average, which helps add to the immersion. The dynamics are very good as well, though it does get a little crowded the more you drive the headphones.


Sennheiser aimed to be balanced when designing the HD 400S. The bass range doesn’t leave me wanting more but also isn’t overpowering. It has a nice balance that works well with all genres. While bass parts tend to be more clear than warm, this is still very good for a headphone at this price. I was impressed by the lows and how well they were able to deliver clean and balanced bass.


The mids on the HD 400S can capture the bulk of the sound without altering it severely. There is some slight boosting in the upper mids, but this adds a nice sheen to the sound. Details from instruments still came through and felt separated enough to where I could pick them out. Elements like vocals have some emphasis, but not to the point where it feels egregious. Overall, the mids are clear and do justice to the mix.


The highs are what tie the balanced sound together. They give a nice crispness to the sound while avoiding unwanted resonances. Things like cymbals, sibilance, and attacks on notes are all treated with the same level of detail and care. The result is a high range that is smooth, present, and detailed.

Sennheiser logo on the HD 400S


Sennheiser has done it again. The HD 400S performs well beyond its price range and is one of the better budget model headphones I’ve tried. It has very few bells and whistles and offers a simple means of listening that still delivers amazing clarity and quality. If you need a good first pair of headphones or need something that you can take out of the house, then the HD 400S is definitely for you.



  • Comfortable
  • Great sound for the price
  • Balanced sound
  • Extremely clear
  • Slight distortion at high volumes

You can buy the Sennheiser HD 400S at Audio46

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3 thoughts on “Sennheiser HD 400S – Review

  1. Hi. I just want know if Sennheiser HD400S is any good for music production? I am still learning music production so at the moment I can not afford highend or midrange cans, just need something to get me through my learning journey until I can afford a suitable pair.

    1. I found these headphones to deliver very good sound re-production. One thing is something I have experienced with every pair of Sennheiser headphones that I have owned whether they are at this starter pair or more expensive ones is a degree of listener fatigue that is often found in other headphones at this price point, but not with these. What I mean by this is a lack of muffled sound when you take them off like the sensation from listening to a concert, but of course not to that degree. The soundstage is very good. Another really important thing for me is what you don’t hear, enhancing the separation of the sound of each member of the band wether it’s the music or vocals. I found the size of the ear cups to be somewhat small. As you can see I like them and maybe you would as well.

  2. I find the HD400S acceptable for PC and mobile devices. I did think with the lower ohm rating the volume was lower then expected. Also these headphones make my ears sweat after a hour. They also creak a little moving my head around. I paid around $50 for them so cannot complain too much. I tried a pair of HD206’s which were way worse and sent them back to buy the HD400S.

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