[karmazynowy]

Recived mine today. #15xx, and definitely has a very noise rattle in right driver on this test:
 
http://www.audiocheck.net/Audio/audiocheck.net_headphoneshaker.mp3
 
However dont hear it when music plays.
 
Shame on you AKG. :/

 

[NamelessPFG]

FWIW, I heard no rattle on my set (#604, if it matters) doing that test last night at both my usual listening volume and even TWICE my usual listening volume to really exaggerate that bass.

Granted, I only used about 10% and 20% respectively direct out of the X-Fi Titanium HD, and for those of you who don't have that sound card, I should note it gets ridiculously LOUD at low volumes with headphones, hence the low percentages.

I don't have an SPL meter on hand, so I can't say how much it really is, but I figure volume/SPL levels may be important to factor in when checking for rattle. Does it even happen at low volumes?

 

[money4me247]

No rattle, serial number 250. out of the lyr 2 (4W/channel RMS) at 3 o'clock position (75% volume). full volume out of computer & music player. that is more than twice my normal listening volume.

 

[PyroMedic]

Listening to the rattle test at full volume on an e17 mine have rattle down low in the left speaker. Don't hear it during normal play back. 
 
edit pair 156

 

[timmy14544]

I'm serial number 284 and I do not have a rattle in mine. But I did discover that my Q701s have a rattle that I never realized before.  Ugh.

 

[majnu]

Tested mine also and there is definitely a rattle in the left ear cup upto around 30Hz then it dissapears.

Such a shame as they are more analytical, well rounded bass,sparkly and have slightly more soundstage compared to my ATH AD900x.

Should I wait for the drivers to break in or is there a reliable test other than dubious youtube 5-200hz bass samples I've been using?

 

[Eee Pee]

From 150 to 0.9 hz.
 
http://onlinetonegenerator.com/subwoofer.html

 

[majnu]

From 150 to 0.9 hz.

http://onlinetonegenerator.com/subwoofer.html

Thanks there were no rattles with that test but with this one for example there was:
https://www.youtube.com/watch?v=PKzal9UThWo

Like I mentioned previously maybe it was a badly sampled track but my 900x's didn't have any rattle. I'm going to let these "burn in" for a while though.

 

[Oktyabr]

Could be clipping in the video compression. 

If you REALLY want to test it, do it with software from your own computer.  Get Audacity for free:  http://audacity.sourceforge.net/

Install it.  Start it.  Make sure it finds your DAC/sound card.  Under the "Generate" drop down at the top, select "Chirp".  Set it to Sine wave, "linear", and pick your start and end frequencies and sample length.  Click "OK" and then the play button.  

I highly recommend you set the "Project Rate", in the lower left corner of the app to the highest your sound device is capable of handling.  I think it's 44,100 by default.  You can also change the generated "Audio Track" to fool around with stereo or five channel or whatever you like but for this test I think the default "Mono" is probably best (same signal to both ear phones).  

 

[sonic2911]

Why can't I hear any rattle ?

 

[bhazard]

  Why can't I hear any rattle ?

I would think the majority are rattle free. I've done every test and mine is fine.

 

[sonic2911]

no rattle at all, even I turned on the bass boost on my e10k

 

[Oktyabr]

I ran all the tests linked on the last half dozen posts or so, (including Audacity) on a pair of Yamaha RHM5A's, ATH-M20, and ATH-M50 and none of them rattle, even at higher than what I would consider "comfortable" listening levels.  If you are hearing it in your headphones, whatever they may be, there is either something wrong with the cans themselves or something else in the signal chain (often clipping will do things).

 

[Beagle]

Mine were rattling...threw them hard on the basement floor...no more rattle.

 

[Painful Chafe]

  Why can't I hear any rattle ?

I know, right. I feel left out. Mine sound fantastic and no rattle.