When comparing AKG K391 NC vs Audeze LCD-4, the Slant community recommends Audeze LCD-4 for most people. In the question“What are the best headphones?” Audeze LCD-4 is ranked 45th while AKG K391 NC is ranked 60th. The most important reason people chose Audeze LCD-4 is:
The hallmark of the LCD-4's sound signature is the bass. The lower frequencies go quite deep and also have a lot of power. This sound is achieved without bloat or muddiness. Those who prefer powerful yet still fairly accurate bass will definitely love these. The mids are full, clear and are quite forward as well so detail from vocals or guitars can easily be appreciated. The highs take a bit of a back seat. While there is still a good level of detail and resolution on the sound, the highs are not as sparkly or airy as other high end headphones. This can be a good thing for some though as this gives the LCD-4 a smoother sound but with less shimmer up top.
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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 Dark sounding headphones with powerful bass, full mids and slightly recessed highs
The hallmark of the LCD-4's sound signature is the bass. The lower frequencies go quite deep and also have a lot of power. This sound is achieved without bloat or muddiness. Those who prefer powerful yet still fairly accurate bass will definitely love these.
The mids are full, clear and are quite forward as well so detail from vocals or guitars can easily be appreciated.
The highs take a bit of a back seat. While there is still a good level of detail and resolution on the sound, the highs are not as sparkly or airy as other high end headphones. This can be a good thing for some though as this gives the LCD-4 a smoother sound but with less shimmer up top.
Pro Superb build quality
The build is a mix of metal, wood, authentic leather as well as carbon fiber. You can really tell that these headphones are expensive and are built really well.
Pro Soundstage has good width
The open back design gives these headphones good soundstage. Though not the widest, there is a good sense of space and separation to the sound.
Pro Heavy duty detachable cable with solid connectors
The LCD-4's cable is quite thick and hefty which should make it more resistant to breakage and other problems that most thinner cables have. Also, it uses mini XLR connectors which are much more secure as they lock in place.
Pro Ear cups feel really soft and smooth on the skin
It uses authentic leather on the earcups' surface which feel really smooth and supple on the skin. There is also a lot of cushioning thanks to the high quality foam material that is inside the cups. The foam also has acoustic properties that help seal in the sound really well.
Pro Includes a large, hard plastic shell case
The LCD 4 comes with case with ample room and padding inside for the headphones and the cable. While the case will most likely not fit in your travel bag, it will provide plenty of protection to your headphones should you decide to take them out of your home.
Con Limited inline controls
The inline remote only allows you to play, pause, and skip tracks. You can’t control volume levels though.
Con Very heavy
It weighs around 700 g, and that's without the cable. This makes the LCD-4 one of the heaviest headphones in the market today and will most certainly put quite a strain on your head and neck if you decide to wear these continuously.
Con Leather material on ear cups trap heat
The leather material prevents heat from escaping effectively. This results in heat building up rather quickly around the ears when using the LCD-4, so it's likely that you'll feel uncomfortable after long listening sessions.
Con Requires a powerful amp for optimal volume and sound
Plugging these directly to your computer or smartphone will lead to poor sound, since it requires a powerful amp to get good volume and to output the optimal sound quality that they are capable of producing.
Con Leak a lot of sound
The metal grills on the sides of the earcups do next to nothing to keep the sound within the ear cups. Other people near you will most likely hear what you are listening to.