When comparing Superlux HD 681 vs Audio-Technica ATH-M40x, the Slant community recommends Superlux HD 681 for most people. In the question“What are the best headphones?” Superlux HD 681 is ranked 5th while Audio-Technica ATH-M40x is ranked 17th. The most important reason people chose Superlux HD 681 is:
The HD681 will not put a lot of strain to your neck and head, even for long periods. Coming in at around 220 g, they are relatively light. This is due to the use of plastic as the primary build material, along with small metal tubes on the headband frame instead of large plastic or metal parts.
Specs
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Pros
Pro Not tiring to wear
The HD681 will not put a lot of strain to your neck and head, even for long periods. Coming in at around 220 g, they are relatively light. This is due to the use of plastic as the primary build material, along with small metal tubes on the headband frame instead of large plastic or metal parts.
Pro Bass and treble are emphasized
These headphones have what is called a V-shaped sound signature where the bass and treble is boosted while the mids take a backseat. The bass is powerful, deep and satisfying. Listening to bass heavy music will certainly be a good experience. The boosted treble makes audio detail up front, so nuances in the music can be clearly heard.
Pro Fairly wide soundstage
Due to the semi-open design, the sound is not completely trapped inside the ear cup housing. This gives the sound a wider, more natural feel.
Pro Fairly neutral sound signature
Sound signature is quite accurate, almost flat. Bass is much more controlled instead of boomy, while there is a slight elevation on the highs, resulting in extra energy and detail up top. These offer a nice middle ground between a fun sound and a more reference/analytical sound signature. This sound quality makes the headphones quite versatile as music enjoyment headphones or studio-use cans.
Pro These have a high quality and durable feel
The M40xs feel solid and are known to be quite durable. The plastics used in the build do not easily flex or make creaks, giving the impression that these can last quite a long time.
Pro Can be used in noisy environments
The over-ear, closed back design along with the thick pleather ear pads can block out quite a lot of ambient noise, and will help users to focus in on the music. These make the headphones great for travel or for mixing/monitoring use.
Pro Comes with two detachable cables
The headphones come with a straight cable and a coiled cable, making them useful in the studio or while walking.
Cons
Con May feel cheap and flimsy
The plastics used in the construction of these headphones are not of the best quality. They feel flimsy and will often flex and rattle.
Con Thin ear pads may cause comfort issues
The ear pads are made of cheap feeling synthetic leather which can get warm rather quickly. To potentially add more discomfort, the cushioning inside these ear pads is quite thin, and can hurt the area around your ears when worn for many hours straight.
Con Mids can be lacking
Some may find the mids to be inadequate. Vocals, guitars and other sounds in the mid-frequencies may sound distant or too soft.
Con Treble can be harsh
While the bass benefits greatly from the V-shaped sound signature, the highs are boosted by quite a lot, and can make the treble sound too harsh for some. Cymbal hits for example can be too washy and near distorted and can be fatiguing.
Con Incompatible with cables from other brands
Only Audio Technica cables can be used with these headphones.
