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Superlux HD668B Dynamic Semi-Open Headphones

4.2 4.2 out of 5 stars 3,399 ratings

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Black
Brand Superlux
Model Name HD668B
Color Black
Form Factor Over Ear
Connectivity Technology Wired

About this item

  • Natural, spatial and accurate sound. Connectivity Technology: Wired
  • Silvery, clear cymbals
  • Pleasantly natural trebles
  • Unobtrusive, natural strings and wind instruments
  • For all types of music
  • Balanced, contoured, and deep bass
  • Exceedingly authentic voice reproduction
Make your spread shine
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Superlux HD668B Dynamic Semi-Open Headphones
Superlux HD668B Dynamic Semi-Open Headphones
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Price$24.99$109.00$39.95-12% $39.95
Typical:$45.30
$49.99$19.99
Delivery
Get it Mar 27 - 29
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Sound quality
4.5
4.4
3.6
4.5
4.4
4.5
Quality of material
3.9
4.0
3.6
4.3
3.4
Noise cancellation
3.1
3.6
3.0
2.6
Comfort
4.4
4.0
4.1
4.5
For gaming
4.4
4.1
3.9
Sold By
TradePort
HIFIMAN
Angel Seller
Kellards
AJ Brand House
Koss Stereophones
connectivity tech
Wired
Wired
Wired
Wired
Wired
Wired
headphones form factor
Over Ear
Over Ear
Over Ear
Over Ear
On Ear
connector type
Wired
6.35mm Jack
3.5mm Jack
3 5mm Jack
3.5mm Jack
connector type
noise control
active noise cancellation
sound isolation
active noise cancellation
headphones jack
3.5 mm Jack
3.5 mm Jack
3.5 mm Jack
3.5 mm Jack
cable feature
Detachable
Detachable
Retractable
Retractable
Tangle Free
High fidelity clip headphones Exceptionally wide frequency response Computer-optimized neodymium, iron, and boron rare-earth magnet structures deliver amazing clarity at any volume Include a straight, dual entry, 4 foot cord with gold-flashed 3.5 mm (1/8") plug Pivoting clips promise accommodating fit Enjoy greater volume despite low-voltage portable devices Covered under the Koss Stereophones Limited Lifetime Warranty

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Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Superlux HD668B Dynamic Semi-Open Headphones


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Product Description

The HD668B is a semi-open dynamic headphone whose sound quality meets the demands of even professional recording studios. Its patented sturdy construction provides long-lasting durability even in challenging conditions, yet the headband’s light weight and optimized mechanical pressure provides long-term wearing comfort. The HD668B comes equipped with 2 detachable straight cables: the short one is 1 meter long for personal sound source on-the-move applications and the long one is 3 meters long for professional monitoring applications. Both cables can be connected together for even more distance if desired.

Customer reviews

4.2 out of 5 stars
4.2 out of 5
3,399 global ratings

Customers say

Customers like the sound quality, cord length, value, and performance of the headphones. For example, they mention that the sound is excellent, there is some emphasis on the bass, and the treble and highs are perfectly in tune with one another. That said, opinions are mixed on quality, appearance, fit, and comfort.

AI-generated from the text of customer reviews

827 customers mention662 positive165 negative

Customers like the sound quality of the headphones. They say the sound is excellent, there is some emphasis on the bass, and the music and effects sounds incredible. They also mention that the treble and highs are perfectly in tune with one another, making a great mix.

"...The treble and highs are perfectly in tune with one another, which makes a great mix for putting together complicated melodies, leads, etc...." Read more

"...here because of the rumor that these headphones have sound quality far above their price point, I can confirm it. They are fantastic, bizarrely so...." Read more

"...Overall: 3/5The audio is great, but I really miss the low end. I plan on replacing these as soon as funds allow for comfort reasons...." Read more

"...The design of the AirWeave cushions, enhanced the sound and the treble of the HD688B. I was in awe of how authentic the sounds were, as I was playing..." Read more

451 customers mention419 positive32 negative

Customers appreciate the value of the headphones. They say it has an unbeatable price point to sound quality ratio. Some customers also mention that the headphones are decent quality for the price. Overall, most are happy with their purchase and recommend them to others.

"...4. And last but not least the price. These are the cheapest headphones I've ever purchased, and they are by far the best ones I've used for under..." Read more

"...That is typical of studio monitors. These are phenomenal for $38, because you will hear everything...." Read more

"...It's that unbeatable price point to sound quality ratio...." Read more

"...The rest of the spectrum sounds perfectly crisp. They are fantastic for the price point, just be aware that you are getting a very weak bass..." Read more

155 customers mention137 positive18 negative

Customers like the cord length of the headphones. They mention that the cord is detachable, universal, and non-proprietary. Some appreciate the long and short cables. Overall, most are happy with the cord design.

"...This is where these headphones deserve 5 stars. No doubt.2. A removable cord? Hell yes...." Read more

"...The detachable cable is such a nice touch on these because you can always replace the cable with a standard 3.5mm to 3.5mm cable of any length if it..." Read more

"...I am also a big fan of the detachable cords...." Read more

"...Cables. I really like the detachable cable along with the fact that 2 different length cables were included with the package...." Read more

94 customers mention67 positive27 negative

Customers like the performance of the headphones. They say that they work wonderfully, incredible, and well for gaming. They also say that the headphones do a lot of things well and are very usable unamplified. Some customers also mention that the headphone is clear, never muddy, and never powerful.

"...may not be the prettiest, the HD688B makes up for it with an unbelievable performance. Of course, as headphones by default, the sound is great...." Read more

"...In sum, the headphones sound excellent and work very well with the other parts listed, although in my case I needed the DAC to remove quite a bit of..." Read more

"...Upon first hearing, I found the 668's to be quite lacking, exhibiting a confined, nasal quality to the music with little to no depth...." Read more

"...The size is great and fit my head perfectly with no issues, they perform wonderfully, and the included cable has stood up the test of time and..." Read more

532 customers mention345 positive187 negative

Customers are mixed about the quality of the headphones. Some mention that the quality is good, extremely solid, and provides great voice clarity. The cables aren't fancy but they don't feel cheap, and they hold up to daily use and show no signs of wearing down. However, others say that the audio output still had a somewhat confined quality to it, they feel cheaply constructed, and look cheap.

"...I was very impressed with the build quality AFTER the fact that I was upset regarding the lack of high quality materials.4...." Read more

"...cord on long car rides -- they hold up to daily use and show no signs of wearing down, all with that same solid audio quality they're renowned for...." Read more

"...The headband is made up of a wiry, hard, plastic, structure, which looks cheap, but is extremely, durable...." Read more

"...price point because these are made mostly of plastic and the earpads are entry-level...." Read more

491 customers mention259 positive232 negative

Customers are mixed about the comfort of the headphones. Some mention that the pads that are provided look comfortable, while others say that they are hard and uncomfortable to wear.

"...The headphones adjust well for me and I have had no issues with fit or discomfort when wearing these for hours on end...." Read more

"...does a great job supporting the headphones, but they do get uncomfortable over time.2...." Read more

"...The pads that are provided look comfortable and all, but the metal bars that keep the headphones together are not adjustable and if your head is..." Read more

"...And it's not comfortable! It's not comfortable at all, if you've ever wanted that authentic "head in a vise" feeling, you can get it here!..." Read more

187 customers mention83 positive104 negative

Customers are mixed about the fit of the headphones. Some mention that the size is great and fits their head perfectly with no issues. However, others say that they are pretty tight on the head, the pad thingys don't exactly fit securely, and the clamp force is kinda tight.

"...-The clamp force is no joke-I'm talking pressure headaches-Swapping the ear pads is an exercise in existential ennui..." Read more

"...No doubt.2. A removable cord? Hell yes. And it comes with a short one (1 meter) and a long one (3 meters)...." Read more

"...Comfort is pretty good. Clamping force is a little tight on my head but I can listen for about an hour before needing a break...." Read more

"...The headphones adjust well for me and I have had no issues with fit or discomfort when wearing these for hours on end...." Read more

117 customers mention64 positive53 negative

Customers are mixed about the appearance of the headphones. Some mention that everything is crisp and beautiful, while others say that they lack the physical appeal. The headphones are comfortable, but have a basic design with no highlights or fancy stuff.

"...wings will take a bit of getting used to, but it really is such a smart design...." Read more

"...; replacing them with something more comfortable is doable, but painfully tedious due to the way in which you're forced to slip a bit of fabric over..." Read more

"...Looks: These aren't going to win any beauty pageants, but they look like old skool, serious headphones which I actually kind of appreciate...." Read more

"...DESIGN: Overall, the design of the HD688B is not my favorite. Very, basic design. The headphones is very, comfortable...." Read more

Hear your music in all its glory!
5 Stars
Hear your music in all its glory!
The headphone/earphone competition today is fierce. The quest to offer better sound quality has been heating up since the introduction of the iPod and subsequent DAPs (digital audio players). Back then, the "pay more money for more performance" was the mindset. $20 headphones sounded like $20 headphones. $200 headphones put $20 headphones to shame, $500 headphones were better than $200 headphones and so on.The educated consumer knows that those days, for the most part, are behind us. It isn't that a $30 headphone can run all over a $200 headphone. No! However, the landscape and the game has changed considerably over the years. The competition is so stiff that you no longer have to pay lofty prices to get RELATIVELY comparable sound.The consumer that does his/her due diligence will discover that OEMs (Original Equipment Manufacturers) release headphones that are near identical to the big brand names but only have a slight variation in sound signature. A good example of this, seven or eight years ago would have been the Sennheiser CX300 ($40 big brand) versus the Creative EP-630 ($20 bargain brand).Today you might look at the AKG 240. Over the years, prices for the AKG 240 have gone from approximately $150 to $60+/- due to competition from the Superlux 668B ($38) and/or Samson SR850 ($50). The AKGs are in a completely different price bracket now because the Superlux and Samson are comparable at their respective price points. Question: Can a $60 headphone sound as good as a $150 headphone. Apparently, yes, because it is in fact the same headphone (AKG @ $150 = AKG @ $60). The difference isn't the sound quality, but rather the price point.This begs the age old question when it comes to audio equipment. Is the difference in price an exercise in futility due to the law of diminishing returns? In the larger scheme, no, but as the landscape changes, sometimes the answer is a resounding yes. I can list half a dozen sub-$200 headphones that will run roughshod over some very popular $400 - $500 headphones. The SoundMAGIC HP150 come to mind.What about the sub-$100 market? The Philips SHP9500 come to mind. They easily hold their own when compared to some very popular $300 - $400 headphones. Implementation and tuning is the name of the game and some of the well known brands fail to impress and their lofty prices are not justified. The uneducated consumer is simply overpaying for a recognizable brand. That can't go on for much longer. Indeed, the sound quality gap among mid-fi headphones has narrowed considerably and pricepoint may not be the reliable litmus test that it once was for the simple.What about the sub-$50 headphone market? Is there any reason to venture where only the entry-level sub-par headphones or the basic "two cans with a wire" usually reside? Is there anything remotely redeemable at this price point?clouds open and angels do somersaults....It's the Superlux 668B.back to reality....I bought these six months ago and have given them time to break in. What a great set of headphones these are. I can't say at any price point because these are made mostly of plastic and the earpads are entry-level. However, the combination of highly detailed, accurate sound and detachable cables for $38 make these a rare treat. How is it that $38 can gain you an above average set of studio monitors? Yes, studio monitors so you can hear the tiniest detail across the entire frequency range when doing a final mixdown. I think the lower mids are ever so slightly recessed in order to avoid bass bleed into the mid frequencies, but the lower-mid slight recess is barely noticeable. The lower-mids is where the warmth of a vocalists voice is, but again, it's barely noticeable. In general, you will hear everything the way the recording engineers intended for you to hear it. That is typical of studio monitors. These are phenomenal for $38, because you will hear everything.I should note that these go to the Nth degree to capture the details in the treble so if you have an aversion to treble you can always use your EQ to roll it off. These are all about the details. Treble extension is about as far as you can take it without being sibilant.I highly recommend these as studio monitors and if you enjoy a neutral sound signature these may work well as your go-to headphones.The detachable cable is such a nice touch on these because you can always replace the cable with a standard 3.5mm to 3.5mm cable of any length if it fails. You actually get two detachable cables. There is a 3ft 3in cable for mobile use and a 9ft 10in cable for home use. If you are like me and need more than ten feet you can simply combine the two cables for a total of more than twelve feet. That's great because I didn't have to purchase an extra cable to meet my needs.When I purchased these 668b headphones I purchased a set of velour earpads just in case the pleather pads made my ears sweat, but thus far I haven't had to install them.The doo-hickeys near the top, where you usually find a headband, are comfortable. The headphones adjust well for me and I have had no issues with fit or discomfort when wearing these for hours on end. Your experience may be different if you have a large noggin' or if your body temperature tends to run hot (meaning if you sweat easily).Bottom line is these are a "no brainer" at $38 because they are excellent.Easy decision. No regretsI'll post pictures at a later date.Hope this was helpful.
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Top reviews from the United States

Reviewed in the United States on August 4, 2016
Color: BlackVerified Purchase
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5.0 out of 5 stars Hear your music in all its glory!
Reviewed in the United States on August 4, 2016
The headphone/earphone competition today is fierce. The quest to offer better sound quality has been heating up since the introduction of the iPod and subsequent DAPs (digital audio players). Back then, the "pay more money for more performance" was the mindset. $20 headphones sounded like $20 headphones. $200 headphones put $20 headphones to shame, $500 headphones were better than $200 headphones and so on.

The educated consumer knows that those days, for the most part, are behind us. It isn't that a $30 headphone can run all over a $200 headphone. No! However, the landscape and the game has changed considerably over the years. The competition is so stiff that you no longer have to pay lofty prices to get RELATIVELY comparable sound.

The consumer that does his/her due diligence will discover that OEMs (Original Equipment Manufacturers) release headphones that are near identical to the big brand names but only have a slight variation in sound signature. A good example of this, seven or eight years ago would have been the Sennheiser CX300 ($40 big brand) versus the Creative EP-630 ($20 bargain brand).

Today you might look at the AKG 240. Over the years, prices for the AKG 240 have gone from approximately $150 to $60+/- due to competition from the Superlux 668B ($38) and/or Samson SR850 ($50). The AKGs are in a completely different price bracket now because the Superlux and Samson are comparable at their respective price points. Question: Can a $60 headphone sound as good as a $150 headphone. Apparently, yes, because it is in fact the same headphone (AKG @ $150 = AKG @ $60). The difference isn't the sound quality, but rather the price point.

This begs the age old question when it comes to audio equipment. Is the difference in price an exercise in futility due to the law of diminishing returns? In the larger scheme, no, but as the landscape changes, sometimes the answer is a resounding yes. I can list half a dozen sub-$200 headphones that will run roughshod over some very popular $400 - $500 headphones. The SoundMAGIC HP150 come to mind.

What about the sub-$100 market? The Philips SHP9500 come to mind. They easily hold their own when compared to some very popular $300 - $400 headphones. Implementation and tuning is the name of the game and some of the well known brands fail to impress and their lofty prices are not justified. The uneducated consumer is simply overpaying for a recognizable brand. That can't go on for much longer. Indeed, the sound quality gap among mid-fi headphones has narrowed considerably and pricepoint may not be the reliable litmus test that it once was for the simple.

What about the sub-$50 headphone market? Is there any reason to venture where only the entry-level sub-par headphones or the basic "two cans with a wire" usually reside? Is there anything remotely redeemable at this price point?

clouds open and angels do somersaults....

It's the Superlux 668B.

back to reality....

I bought these six months ago and have given them time to break in. What a great set of headphones these are. I can't say at any price point because these are made mostly of plastic and the earpads are entry-level. However, the combination of highly detailed, accurate sound and detachable cables for $38 make these a rare treat. How is it that $38 can gain you an above average set of studio monitors? Yes, studio monitors so you can hear the tiniest detail across the entire frequency range when doing a final mixdown. I think the lower mids are ever so slightly recessed in order to avoid bass bleed into the mid frequencies, but the lower-mid slight recess is barely noticeable. The lower-mids is where the warmth of a vocalists voice is, but again, it's barely noticeable. In general, you will hear everything the way the recording engineers intended for you to hear it. That is typical of studio monitors. These are phenomenal for $38, because you will hear everything.

I should note that these go to the Nth degree to capture the details in the treble so if you have an aversion to treble you can always use your EQ to roll it off. These are all about the details. Treble extension is about as far as you can take it without being sibilant.

I highly recommend these as studio monitors and if you enjoy a neutral sound signature these may work well as your go-to headphones.

The detachable cable is such a nice touch on these because you can always replace the cable with a standard 3.5mm to 3.5mm cable of any length if it fails. You actually get two detachable cables. There is a 3ft 3in cable for mobile use and a 9ft 10in cable for home use. If you are like me and need more than ten feet you can simply combine the two cables for a total of more than twelve feet. That's great because I didn't have to purchase an extra cable to meet my needs.

When I purchased these 668b headphones I purchased a set of velour earpads just in case the pleather pads made my ears sweat, but thus far I haven't had to install them.

The doo-hickeys near the top, where you usually find a headband, are comfortable. The headphones adjust well for me and I have had no issues with fit or discomfort when wearing these for hours on end. Your experience may be different if you have a large noggin' or if your body temperature tends to run hot (meaning if you sweat easily).

Bottom line is these are a "no brainer" at $38 because they are excellent.

Easy decision. No regrets

I'll post pictures at a later date.

Hope this was helpful.
Images in this review
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148 people found this helpful
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Reviewed in the United States on October 27, 2014
Color: BlackVerified Purchase
One person found this helpful
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Top reviews from other countries

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tenki
4.0 out of 5 stars bra budget lurar
Reviewed in Sweden on March 16, 2024
Color: BlackVerified Purchase
C.R.
5.0 out of 5 stars MEGA für kleine Münze
Reviewed in Germany on January 27, 2024
Color: BlackVerified Purchase
Skayps
5.0 out of 5 stars Meilleurs rapport qualité prix.
Reviewed in France on July 29, 2023
Color: BlackVerified Purchase
Bruno Barrera
5.0 out of 5 stars Muy buen intento de audio de calidad en audífonos económicos
Reviewed in Mexico on June 11, 2019
Color: BlackVerified Purchase
2 people found this helpful
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Praveen Leen
5.0 out of 5 stars Buying a headphone this great @ this price is a sin!
Reviewed in India on March 13, 2018
Color: BlackVerified Purchase
One person found this helpful
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