When comparing AKG K391 NC vs Beyerdynamic DT990Pro, the Slant community recommends Beyerdynamic DT990Pro for most people. In the question“What are the best headphones?” Beyerdynamic DT990Pro is ranked 28th while AKG K391 NC is ranked 61st. The most important reason people chose Beyerdynamic DT990Pro is:
These headphones should be able to withstand minor impact and drops, and will last you years of use. The headband and yokes are made from solid yet lightweight metal, so they won’t break easily. The ear cups are made of plastic materials which, while not as durable as metal, are strong enough to not come off as flimsy.
Specs
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Pros
Pro Good accessory bundle
The accessories included are all very useful. You get two 3.5mm headphone cables, a USB charging cable, silicone ear tips, a travel pouch and an airplane adapter.
Pro The headphone cable can be detached from the control module
You can easily replace the 3.5mm cable should it get damaged. You can detach the 3.5mm cable from the control module which is very convenient. Other noise cancelling modules have fixed cables, so you’ll have to replace the headphones should the cable get damaged.
Pro Integrated microphone
You can take calls with these headphones on. A microphone is integrated into the remote which makes answering calls fast and convenient.
Pro Decent active noise cancelling
A good amount of noise will be blocked from mixing in with your music. Loud, low-pitched sounds may still be clearly heard though
Pro Compact noise cancelling module
You aren’t likely to have issues using these on the go. Most active noise cancelling in-ear headphones have large control modules, while the K391NC has a fairly compact and light module. You can easily use these headphones while walking and comfortably enjoy active noise cancelling with your music.
Pro Fairly detailed and rich sound
The highs are quite detailed, yet do not get harsh. The mids are slightly forward, so vocals and instruments can easily be heard. The bass is not very powerful but is tight, so you’ll get decent punch from your music.
Pro Well-built
These headphones should be able to withstand minor impact and drops, and will last you years of use. The headband and yokes are made from solid yet lightweight metal, so they won’t break easily. The ear cups are made of plastic materials which, while not as durable as metal, are strong enough to not come off as flimsy.
Pro Full and rich bass with very detailed treble
The low frequencies are what stand out from the sound signature. The bass is powerful, deep and tight so you get a lot of thump without muddying up the overall sound. This is complemented by very detailed and airy high frequencies, so you should be able to easily hear the fine details from your music.
Pro Wide soundstage
The audio from these headphones will sound wide and quite immersive, which can be attributed to the open-back design. This also results in good instrument separation, so you’ll be able to easily identify the directions where the various sound sources are coming from. The wide soundstage can result in a truly immersive music listening experience, and also makes these headphones a good choice for movies and gaming.
Pro Soft on the head
You can wear these headphones for many hours straight with little to no issue, as the head band and ear pads have thick padding. The ear pads have a suede cover which allows some airflow to the ears, and helps minimize heat build-up.
Cons
Con Limited inline controls
The inline remote only allows you to play, pause, and skip tracks. You can’t control volume levels though.
Con Requires a headphone amp
You won’t get a lot of volume and a good music listening experience from these headphones when plugged straight to your phone or computer. These have a high impedance rating so you’ll need a powerful amp to run the DT990 properly.
Con Leaks a lot of sound
The DT990s are not ideal for use in an office environment, if you share your space with others or when traveling. These headphones are fully open, so they leak out a lot of sound, which can be annoying to others.
Con Tight clamping force
You may find the clamping force to be quite tight, especially if you have a fairly large head size. This can make wearing the headphones for hours straight uncomfortable, even if the padding on the ear cups and headband are quite thick.
Con The highs can get quite sharp
too boosted and harsh, which can feel fatiguing.This can be apparent if you listen to more aggressive styles of music like rock or metal, or music which involves a lot of cymbals and high-pitched instruments.