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Review Neumann NDH 20

Non-engaging first attempt

Legendary microphone manufacturer fails to grab us with its first headphone model.

Neumann NDH-20
Karakter
Neumann NDH 20
Appealing appearance, great aluminum finish and decent comfort. Seems to be a comfortable load on amplifiers, does not change sound very much from amplifier to amplifier.
The sound is dark, with too little detail at the top. It also sounds too sharp for our liking.
  • Type: Closed, over the ear
  • Principle: Dynamic
  • Foldable: Yes
  • Microphone / remote control: No / no
  • Cable: 3 m straight + 1.5-3 m spiral, 3.5 mm (6.3 mm adapter)
  • Elements: 38 mm
  • Impedance / sensitivity: 150 ohms / 114 dB
  • Frequency response: 5-30,000 Hz
  • Weight: 390 grams (without cable)
  • Color: Two-tone silver gray / black
  • Web: neumann.com

When we first heard that Neumann had made his first pair of headphones, we thought this had to be something quite special. In the studio industry, the German manufacturer is famous for its studio microphones, which can cost from a few thousand bucks to over 5000 £. Their studio monitors are also very popular.

Headphones, on the other hand, have never been tried before. But since the parent company is Sennheiser itself, it was really only a matter of time before it came.

Neumann’s engineers have supplied themselves with components on Sennheiser’s parts warehouse, when assembling NDH 20. The basic model is the now discontinued Sennheiser HD 630VB, which ran off with the title Best Buy in a group test in 2016.

The NDH 20 differs from its relative by lacking variable bass control (a feature we liked), but in return it has a detachable cable that the HD 630VB lacked. Since it is intended for studio use, the impedance is quite high, 150 ohms. This allows you to connect several sets of headphones to the same amplifier, without the impedance dropping down to an unmanageable level for the amplifier. The sensitivity is at a nice 114 dB, which means that they are not hopeless with a mobile phone. But at full volume connected to the iPhone’s Lightning adapter, the sound is just loud enough.

We like the look of the headphones and that they are collapsible. They have a clearly more exclusive feel than the HD 630VB that they are related to.

Neumann-NDH-20 parts

Both a straight wire and a practical spiral cable are included with the Neumann NDH 20. Photo: Neumann

Neumann NDH 20 in use

The fit is perfectly fine. It squeezes a little around the ears and the ear pads in well-drawn memory foam are a little hard, but you feel that the headphones breathe a little more than other closed variants. Which is an advantage for sound people who are going to use them for a long time in the studio at a time.

When I hear about headphones for studio use, I immediately think of a linear frequency curve, and very analytical and correct sound. You know, like the Sennheiser HD 800S, the flagship of the parent company (in dynamic headphones, we are not talking about the electrostats HE 1 for just over half a million kroner).

Annonse

But NDH 20 is not linear. They have too much bass, especially in the upper bass register. Furthermore, there is too little air at the top, cymbals lack air and details, as do singing voices – male and female. It is almost well done by Neumann to be able to combine loud sound with little air.

Conclusion

Neumann’s first pair of headphones have an appealing appearance, and with greater quality radiance than the Sennheiser HD 630VB on which they are built.

But NDH 20 is not as engaging listening. No matter what we play music, the tiredness shows up after a fairly short time. The instruments do not have a complex enough sound structure, there is no large soundscape to speak of, it all becomes too flat and boring. It also sounds pretty loud.

It does not take much before NDH 20 sounds very good. There are qualities here, but the final sonic result engages too little. We hope Neumann tries again, they can definitely do better than this.

Neumann NDH 20 frequency

Neumann NDH 20 measured with miniDSP EARS and REW. Compensated for what miniDSP thinks is subjectively linear.
We see a very midrange-focused sound curve, with a swelling from 200 to 1000 Hz. Treble reproduction is generally muted all the way.

Also in this test

Hifiman Sundara

Test winner in open class

Hifiman Sundara is not only the best buy in this class, you also get the best sound.

Perfectly balanced sound with potent bass and buckets of details. Super-defined sound image with almost complete qualities.
The size and weight can be inhibiting.

Audeze LCD-1

High-end headphones for your smartphone

Audeze LCD-1: There is no better sound for portable use in this price range.

Compact, light and perfect for mobile. Glass clear and neutral sound, with live bass reproduction.
The bass rolls off early and the soundscape is not as fine-meshed and refined as the reference.

Sennheiser HD 660S

Classic in renewed costume

Sennheiser's best in the 600 series is the safe choice in this class.

Silky smooth sound rich in details, beautiful vocal reproduction and warm, full sound.
Limited sound pressure and deep bass.

Fostex T60RP

The music unfolds

Whether it is because they are semi-open is not known, but the Fostex T60RP has cleaner sound than most closed in the class.

Great resolution, rich bass and large room. Very musical presentation.
Very heavy duty! Forget about using these with your mobile. Slightly reclining treble. Looks like industrial hearing protection…

Denon AH-D5200

Fabulous closed headphones from Denon

Denon AH-D5200 is among the very best closed in its class.

Super nice and detailed sound image with lots of timbres. Nice workmanship and nice comfort.
The treble reproduction could have been a little more fine-grained.

Beyerdynamic Amiron Home

The most sensible choice

The Beyerdynamic Amiron Home is an exceptionally successful all-round headphone.

Detailed, warm and open sound image with very potent bass. Excellent wearing comfort and high quality.
Requires a serious amplifier. May sound a little too soft for someone's taste.

Beyerdynamic DT 1990 Pro

Sharp analyst

The studio qualities are the strengths and weaknesses of Beyerdynamic DT 1990 Pro, must be tested before purchase.

Super resolved and analytical. Steel control in the bass, very open and detailed sound, and excellent wearing comfort.
The analytical grade gives sharper, and less listening-friendly sound.

Sony MDR-Z7M2

The entertainment is saved

Sony has improved its premium model Z7 with technology from the flagship Z1R. The result is even more striking.

Extremely comfortable ear pads. Great quality feeling, a lot of metal. Hefty bass, very entertaining listening.
Dynamics could have been more outspoken, and the bass faster. Takes some focus from the overtones and air in the music.

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