When comparing Shure SRH440 vs Superlux HD 668B, the Slant community recommends Shure SRH440 for most people. In the question“What are the best headphones?” Shure SRH440 is ranked 79th while Superlux HD 668B is ranked 111st. The most important reason people chose Shure SRH440 is:
Sound signature is fairly neutral, with slight elevations to the bass, mids and highs. Bass has a nice fullness to it, with some extra depth which gives the sound a lot of body. The mids are neutral but slightly forward, making the vocals sound really clear. Aggressive guitars can sound a bit harsh because of this though. Treble has good extension, and the added peak on the highest frequencies add more sparkle to the sound. Overall, these headphones can be used both for critical listening and for casual music enjoyment as well.
Specs
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Pros
Pro Reference quality sound which can be fun to listen to
Sound signature is fairly neutral, with slight elevations to the bass, mids and highs.
Bass has a nice fullness to it, with some extra depth which gives the sound a lot of body.
The mids are neutral but slightly forward, making the vocals sound really clear. Aggressive guitars can sound a bit harsh because of this though.
Treble has good extension, and the added peak on the highest frequencies add more sparkle to the sound.
Overall, these headphones can be used both for critical listening and for casual music enjoyment as well.
Pro Superb sound isolation
The closed back, over the ear design blocks out a significant amount of noise, allowing users to easily focus on the audio. Sound leak is also kept to a minimum.
These are great for tracking and monitoring, and are also great choices for use in quiet environments like a library.
Pro Headphone cable is detachable
You can easily remove the cable when these are not in use, making them easy to store. This also makes the cable easy to replace when needed.
Pro Good sound quality with nice, full bass and lively highs
The low end is powerful and punchy, adding a lot of thump to the music. Explosions from movies and games really stand out. Hip hop and EDM genres will also work well with these headphones.
Highs are forward, so audio details can easily be appreciated.
The mids on the other hand are recessed, which results in a V-shaped sound that many consider to be fun-sounding.
Pro Wide sound stage
The semi-open design results in a wide and natural sound stage. Combined with the great sound imaging, these headphones can give an immersive audio listening experience.
Pro Soft and comfortable on the head
The ear pads and headband are cushioned with thick foam which can help give a comfortable listening experience.
Pro Cable can easily be changed
Connected to the left ear cup is a 3.5mm breakaway male jack, where you can attach a 3.5mm female to male cable. Changing and replacing cables should be easy because of this feature.
Pro Comes with two headphone cables
It comes with a 1-meter cable and a 3-meter cable out of the box. Not only does this give you the option as to the the cable length that suits your needs, but you also have a spare cable available in case one gets damaged.
Cons
Con Build quality is rather poor
The overall build is quite plasticky, with a lot of rattles. While it is not fragile by any means, the build quality certainly does not inspire confidence.
Con Ear pads are not the most comfortable
Pleather is used on the surface of the ear pads which traps heat and can make the area around the ears warm up fast. Also, while the ear pads are large and soft, they are also quite thin. People with larger ears may experience their ears rubbing against the driver housing, which can get quite uncomfortable.
Con Thin headband padding
There is minimal cushioning on the headband, so the plastic may dig into your head when using the headphones for long periods.
Con Clamping force can be a bit too tight
While this is somehow mitigated by the thick foam on the ear pads, users who are sensitive to clamping pressure will very likely find these to be a little too firm.
Con Highs can be harsh
The highs are clear and forward, but at times can also be too much. The sound can get fatiguing to listen to, especially if the user is sensitive to treble.
Con Feels flimsy
The 668B's build is primarily made of plastic, and the fit and finish is not that great. You will hear and feel a lot of rattling and the plastic will flex often. These are budget headphones and it shows in the build quality.
Con Heat can build up quickly around the ears
The vinyl material that covers the ear pads may feel soft and comfortable on the skin, but it also traps heat pretty well. Heat can build-up quickly around the ears, which can be uncomfortable for most.