When comparing Koss PortaPro vs Superlux HD 668B, the Slant community recommends Koss PortaPro for most people. In the question“What are the best headphones?” Koss PortaPro is ranked 14th while Superlux HD 668B is ranked 111st. The most important reason people chose Koss PortaPro is:
The drivers may be small and thin, but there is good bass presence.. The mid-range may not be the most detailed, but there is a smoothness to it that gives the sound a warm and pleasing quality. There is a slight roll-off to the high frequencies yet detail and extension is still good . Overall, these headphones can give a fun listening experience that can work well with all genres of music.
Specs
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Pros
Pro Full and warm sound despite the small size
The drivers may be small and thin, but there is good bass presence.. The mid-range may not be the most detailed, but there is a smoothness to it that gives the sound a warm and pleasing quality. There is a slight roll-off to the high frequencies yet detail and extension is still good . Overall, these headphones can give a fun listening experience that can work well with all genres of music.
Pro Lifetime warranty
Koss provides a lifetime warranty for these headphones.
Pro Can be folded down to a very compact size
The ear cups can be folded into the headband. This further reduces its already slim design into something that is much more compact. When folded down, these headphones can easily fit in small bags.
Pro Can accommodate a wide range of head sizes
The headband can easily be adjusted to fit a user's head. The assembly features sliding metal pieces which can easily be set to fit small to large heads.
Pro ComfortZone system allows extra fit customization
Aside from headband adjustment, users can also adjust the clamping force of the ear cups using the Comfort Zone system. This changes how secure the ear cups attach to the headband, which results in either a loose or tight clamp.
Pro Can turn heads due to their retro design
These are eye-catching headphones because of their retro design. The unusual shape of the driver case and the blue accents definitely make these look unique.
Pro Has a durable and reliable feel
These headphones may look thin and flimsy, but are actually much more durable than their look suggests. The headband is made out of metal and can take some flex without snapping. The plastics used also exude a quality feel.
Pro Carrying pouch makes these easy to travel with
When used on the go, these headphones get extra protection from the included carrying pouch. This pouch looks simple and is made out of pleather, which should protect these headphones from scratches.
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 Danger for hair
Hair tends to get snagged on the metal headband which can get quite uncomfortable.
Con Not much power to the sound
If you are looking for headphones that offer a lot of thump and a lot of detail then these are not for you. The headphone drivers are too small for big and detail-rich sound.
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.