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Danny_Liu
1106
Nov 21, 2014
Hey Everyone,
We're very excited to bring you the AKG K7XX, a co-branded product between AKG and Massdrop. It's a little bit different than usual, as we're unveiling the drop page before the headphone is actually being offered on the site so that members can read up on and learn about the K7XX.
We've sent units to quite a few reviewers, and I'll be updating this post with links as they come.
Head-Fi Impressions, courtesy of project86: http://www.head-fi.org/t/743280/new-release-the-k7xx-massdrop-first-edition-an-exclusive-from-massdrop-and-akg
Changstar Measurements and Impressions, courtesy of Marvey: http://www.changstar.com/index.php/topic,1902.0.html
Q: Is the serial number I receive dependent on when I joined the drop? A: Units 1-10 were reserved for reviewers. The quickest 250 members to purchase the headphone are guaranteed to receive a serial # within the first 300 serialized numbers. After the first 250, it's a random grab bag from there on out.
helloimkon
24
Nov 24, 2014
Danny_Liuwill we get the serial number that corresponds to the # on the star next to our name?
heyyam
1
Nov 25, 2014
Danny_Liuhey, can you declare value as 50$ for international shippings?
sezyklon
2
Aug 20, 2015
Danny_LiuDear Massdrop: I live in the Qinghai-Tibet Plateau, my home is 2.3 kilometres above the sea, and I think it is a miracle that a man live in Qinghai-Tibet Plateau and buy a headphone from massdrop in Internet. Some of my friends don't believe I can make it happen, but I prove them wrong. But now I feel very very sad,because there is something wrong with my NEW AKG K7XX, some noise in the left sound unit when I play some music, I can sure it's not the problem about music files. I even borrow a Sennheiser HD headphone to make a test and it works good. I don't know what I can do now, I called AKG customer service of China and they said the AKG K7XX is not the product they sell in China, so they can do nothing about it. I still remember when I was a young man bought my first headphone AKG K420 in my life, the first time I put it on my head and I knew that's the right way to music world. I still remember when I brought AKG K7XX from Massdrop and checked the DHL tracking information everyday in the past half month. But now it's realy make me sad. It's the second time I write to you which is my only hope, I know my English is pool, but I think I make myself clear. I like my AKG K7XX, it's no doubt, but I want fix that problem. I wrote two letters to massdrop, but I didn't get any reply. Hoping to hear from you soon.
Usern473
12
Aug 20, 2015
sezyklonSezyklon,
I'm not associated with MassDrop.
I've read others have this problem with rattling or vibrations out of one earcup. You can do a search online on the forums for more data. Though basically they are claiming if you take off the ear foam you can lightly bend or loosen the plastic covering over the driver, this gives the drivers diaphragm more room to move about. It may have been bent or a bit too tight/loose before to produce accurate bass/sub-bass.
You can check here -- https://www.reddit.com/r/headphones/comments/2r3bul/rattle_in_right_ear_of_akg_k7xx_when_i_run_the/
and here-- https://www.reddit.com/r/headphones/comments/37ktz0/i_fixed_my_k7xxs_rattle/
I hope you can either fix your issue carefully yourself --if you don't want to wait for shipping-- or warranty service gets back to you soon.
Best luck!
sezyklon
2
Aug 21, 2015
Usern473Big thanks! I do appreciate what you've done for me. I will try to fix this issue by myself.
Usern473
12
Aug 21, 2015
sezyklonNo problem. :) I know if I spent much money on a product and waited long with anticipation I'd be rather discouraged. Please let me know your outcome, if either MassDrop sends a replacement or you end up fixing them by yourself. You may help others browsing the K7XX discussion with similar issues.
-Cheers!
sezyklon
2
Aug 22, 2015
Usern473RATTLE IN THE LEFT EAR AND QUALITY CONTORL PROBLEM
Hey eveyone,remanber me? I'm the man who said I bought a AKG K7xx with rattle in the left ear. you know when I put the left earcup up to left ear and I was shocked. As you see in the picture where I marked with red square, you can see a copper wire through the left ear, I think that's the reason whick makes the rattle.
I write to massdrop third times and they never write back.
WE KNOW THE AKG K7XX IS REALY CHEAP, BUT CHEAP MEANS BAD QUALITY CONTORL?
IF YOU BUY A AKG K7XX, DO YOU WANT TO GET THE SAME ONE JUST LIKE ME?
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ManCheetah
5
Aug 22, 2015
sezyklonJust a hunch, but I think you might find that is part of the voice coil and is meant to be there. You have to have current flowing through voice coil to to react to the magnet causing the excursion of the cone which in turn produces the sound waves.
If you check the functional, non rattling side, it will be the same.
Usern473
12
Aug 22, 2015
ManCheetahSezyklon I believe ManChe's got it right. Though I don't have my k7XX as of yet I decided to take apart my Koss Porta-Pro's --easiest set I have for dissassembly -- and I see no concern. That long wire in the first position underneath the clear cone running up to the center voice coil is just your lead from the channel. I have to say though.. I'm not sure what the short copper fleck is on the other side on the second pic.
Have you had any luck with plugging in the headset, playing something that makes it vibrate and gently pulling on the casing covering to see if it may just be touching the driver?
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