Do you know that 668bs are size adjustable? Few people know this actually. You must use a little bit of force. You can change their size quite a bit. And for the highs and bass use eq. Now I have fidelios x2 and 668bs don't fall far behind.
This headphones are really good for the price, expecially when you change pads. With changed pads and with streched headband wire they are almost weightless. I would often wear them fro 10 hours a day with no problem on my ears.The only issue is the build quality. The male TRS jack on the headphones recently broke and I will need to solder a new one. And of course, great video as always. You seriously need more subscribers.
I think you can pick up any velour pads that fit K240 or DT990. I say velour pads since most people ive seen prefer velour rather than pleather which makes your ears sweat often.
Update after 6 months: This headphones perform solid but since I am a bit clumsy, the headphone jack (not the cables) are almost ripped. If you own this, remember to take care of it
Also, please check out WESC Bass headphones if they show up on ebay for 11-20$ but before doing so buy a pair of 8cm velours for them. They have quite an impressive stage for a closed set of cans and quite a pleasant sound signature when modded.
Amazing quality production of your videos, i can see a lot of effort went into it. Very informative and enjoyable to watch. Keep it up. I am also buying these headphones.
The question is if they for home use as sound bleeds out why make an ad with a girl travelling around which they are not used for travel purpose as stated ? Why not do a video at home with a nice fat amp relaxing in a lazy boy sofa
Superlux HD681 and HD668B are the WORST headphones i have ever bought or tried. Even my $9 Space headphones sound better than them. Dont waste your money on them and go for different and better brands.