Summary: Fist of all, this is my first ever review,and English is not my native language, so please, have some understanding .
I bought these headphones 9 months ago, they were my first "quality" headphones. Before them I owned some pretty old phillips headphones which my dad boght back in 1994 when he bought our Technics amp,cd player,and tape deck player. The price of these headphones was around $50 , and I like good quality sound for a budget, so I decided to get them.
Pros: Lightweight, good bass response, comfortable, great sound for the price
Cons: Mids are not that good, not so neutral sound, highs are a bit too exaggerated
Summary: First that all. Im gonna say to all who wanna buy these that these headphones need Burn In, You will notice too much highs the first time.
And yes, that was my first impresion of these, Too much highs and sibilances, but after around a week I started to notice a improve in the highs and they started to sound very very awesome.
So lets start with the Sound:
Bass: The Bass is punchy and it goes deep too, but not to much but you can hear that it goes deep.
Summary: I had trouble picking a rating for these.
At the price I paid ($36), these sounded good in many ways, with the exception of the highs, which I found to be harsh.
The killer for me, however, was not the highs themselves, but the ear-stabbing pain those highs induced very quickly (within a minute). This wasn't fatigue - this was pain. I'm not set up to measure anything, but I suspect they have a nasty spike somewhere in the treble range.
Summary: Killer headphones for the money. Very hard to dislike. People who probably paid more money for AKG K240's (which sound inferior) would probably criticize them. I work in the audio retail industry and have experience with Grado - full line, Sennheiser - full line, AKG full line, Goldring, Beyerdynamic.
Pros: Sound- bass, treable, mids, stage accuracy
Cons: Not very portable, pleather cushions make you sweat when is warm..
Summary: No doubt, the 668 is a great value.
The sound is on par with some 200$ cans, and therefor really impressive.
But it is far from reference headphone level, specially the mids and balance are not even close. Built quality is surprisingly good for the costs, but still flimsy and made out of rather non elegant materials. The cable plugs are a nice gimmick.
Is it a winner? Definitely!
Is it close to Beyer 880 or Senn 600 class?
Summary: I got my hands on an HD-668B today...
I still wonder what's up with these AKG clones... Is Superlux paying license fees to AKG so they may use their classic K 240 design for their headphones? One could certainly think so since a reputable dealer such as Thomann in Germany is selling them and they probably don't want to anger the Harman group :-)
Let's have a look at the headphone itself...
Pros: Feels solid, can play very loud, comfort, detachable cable, good value
Cons: exaggerated bass and treble, sibilant, looks a little cheap
Summary: Amazing Headphones.
I 1st found out about these cans when I walked in on a new audio shop in our local mall. They had a lot of cans and IEMS available for audition so I listened to one. I was blown away with the detail and just about everything, there are also some Sennheisers there but these really stand out for me I couldn't put them down.
Summary: After a year with this amazing cans i think i can say a couple of things.
How the hell they can make this cans for this price?? China it's the answer...
This cans are amazing for only 20€, they do an unexpected sound quality for the price. It's not a Giant Killer but it's a Mini Giant Killer (MGK), i own a Sennhesier HD555 and -for sound quality- the HD668B are at the same level no doubt, but for 1/4 of the price.
Summary: Got 2 pairs for US$65 ... gave one to a friend who is a bass-head (plays video games and runs it through movies [ DVDrips]) and kept one for myself.
After a year, here is our skinny on these El-cheapos:
Get the ugly part out of the way --> These boys are unforgiving and bright and WILL show up your crappy music systems. If the recording was brightly mastered/crap, if your source is bad, if your cables are bright (esp.
Pros: (in context of price) detail ,resolution, soundstage, fast-taut bass
Cons: (in context of price) bright ... bright ... bright
Summary: I recently got these headphones from a german online store after reading the raving review at headphonia.com. While it left me quite sceptical, I thought ca. $35 isn't that much of a risk to take and they'd even be worth the price if they just had a decent sound quality.
But they haven't. They have an incredible sound, just like the reviewer at headphonia and the previous reviewer here have described it.