When comparing Superlux HD 668B vs Sony MDR 7506, the Slant community recommends Sony MDR 7506 for most people. In the question“What are the best headphones?” Sony MDR 7506 is ranked 15th while Superlux HD 668B is ranked 111st. The most important reason people chose Sony MDR 7506 is:
The bass is just right. It may not have the deep sub-bass extension that bass heads crave for, but what is there is fast, tight and punchy. The mids are clear with a hint of warmth, which make vocals and guitars sound very clear and you can easily hear their sonic nuances . The reproduction of highs is the part that these headphones really shine. They are crystal clear and highly detailed without adding hiss or harshness to the overall sound. Cymbal crashes and pings, for example, are very close to what you would hear if they were played right in front of you.
Specs
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Pros
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.
Pro Clean and balanced sound with smooth bass and detailed highs
The bass is just right. It may not have the deep sub-bass extension that bass heads crave for, but what is there is fast, tight and punchy. The mids are clear with a hint of warmth, which make vocals and guitars sound very clear and you can easily hear their sonic nuances .
The reproduction of highs is the part that these headphones really shine. They are crystal clear and highly detailed without adding hiss or harshness to the overall sound. Cymbal crashes and pings, for example, are very close to what you would hear if they were played right in front of you.
Pro Very affordable price for the sound and quality build that you get
Despite being sub $100, the MDR 7506 can compete against headphones up to twice the price. These make for great headphones if you are just starting to get serious about your audio and you want a relatively inexpensive yet quality purchase.
Pro Reliable headphones due to solid build quality
The MDR 7506 is built outstandingly well, with high quality materials and with little to no creaks and unnecessary flex. These headphones have been around since 1991, which has given Sony a lot of time to refine the manufacturing process of these cans.
Pro Easy to bring on the go due to the collapsible design
The yokes are collapsible and fold into the headband, reducing the headphones to a much more compact size. Included with each purchase is a synthetic leather pouch for added protection for the headphones when taking them on the go.
Pro Minimal sound leakage due to the closed back design
These leak very little sound compared to other over-ear headphones. The rear side of the ear cups is fully closed, which effectively minimizes sound leakage. With these, you can fully enjoy your music without disturbing people beside you.
Pro Has two separate ports for listening
Cons
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.
Con ear pad material will flake off after a short while.
You can use Brainwavz replacement earpads as an alternative.
Con Cable is quite long and non-removable
The headphone cable is coiled and is about 10 feet long. This is great for studios, however walking around in public with these headphones on can be awkward. The cable cannot be removed and has no remote or mic.
Con Can be very picky with audio sources
Due to how accurate sounding these are, you will be able to hear minute details from the sound, including hiss, distortion, and the like. To get the most out of these headphones for music enjoyment, you will want to have a great audio source.