[Shahrose]

Quote:

So far my one complaint with the K1000 is the poor dampening.  I seem to get more rattles and vibrations when listening to lower frequencies than I do with any other headphones.  The majority of listening is fine but every now and again I will hit a frequency that causes resonance and disrupts my listening experience.  Aside from that these headphones have a really realistic soundstage and image which is astounding. 

 
Sounds like a problem. I've used the K1000s as speakers (a few feet away) and they never rattled or distorted, not even close.
 
Check your amp if the rattles are bilateral, or your driver enclosure for any hair or other contaminant if the distortion's only on one side.

 

[tdogzthmn]

^ how does one open the cages surrounding the drivers?  The only screw I have notice is on the bottom close to where the wire terminates into the ear piece. 

 

[Shahrose]

Quote:

^ how does one open the cages surrounding the drivers?  The only screw I have notice is on the bottom close to where the wire terminates into the ear piece. 

Tread carefully here. My advice would be to consult someone who's had experience opening up these things. The pros I knew had a hell of a time recabling mine safely.

 

[Mr.Sneis]

Quote:

^ how does one open the cages surrounding the drivers?  The only screw I have notice is on the bottom close to where the wire terminates into the ear piece. 

There are a few screws that hold the bottom parts together, the cages are held in with glue.

 

[Dyaems]

note that if you remove the 'cages' from the glue you 'might' need to put another layer of glue, or any material that can make the 'cage' sit back in its place. for some reason when i close the cages without any material to hold the cage properly, it rattles like... a cage.
 
don't worry, the k1000 frames are tough, so dont panic. unless... the wire connected to the diaphram snapped...

 

[tdogzthmn]

I did a close inspection of the driver through the wire cage using a bright light and saw no indications of hair(s) or other contaminants on the driver.  The sound is generally super clear, and the rumble/vibration is only noticed when I'm playing something which has strong bass or certain lower frequencies which is why I suspect its part of the internal mechanisms which is hitting a resonant frequency.

 

[grokit]

Mine does that too, it depends on the recording though.

 

[Zsubbo]

The easiest way to find out the resonance frequency is to use a tone generator. 

 

[Dyaems]

Quote:

I did a close inspection of the driver through the wire cage using a bright light and saw no indications of hair(s) or other contaminants on the driver.  The sound is generally super clear, and the rumble/vibration is only noticed when I'm playing something which has strong bass or certain lower frequencies which is why I suspect its part of the internal mechanisms which is hitting a resonant frequency.

I get that noise as well when I had a pair in the right driver only. Not in all songs though.

 

[vvanrij]

I have 2 pair's of K1000's, neither rattles when producing low frequencies.

 

[robm321]

I've had a single pair for over 5 years (bought new) and have listened to many others, and they have never rattled as described. I believe there might be a problem. 

 

[mrarroyo]

Neither of my two pairs rattle, both have been worked on by Fritz and they sound superb!

 

[Donald North]

With the help of a fellow HeadFi-er in Germany, I now own a mint bass-heavy K1000

Package arrived this afternoon. I can't wait to give them a listen through the Stratus.

 

[mrarroyo]

How about posting some pictures.

 

[qazxsw80]

Hi.I found some information about this problem from AKG forum:
 
 

[size=small]Driver failures are very rare with K 1000. In very old products it may be that the foam damping inside the system deteriorated due to normal ageing. In such a case you will notice an audible distortion at lower frequencies. If a K1000 is not overloaded the drivers will last for decades. [/size]
[size=small]Karl. AKG[/size]

I read some post from this guy and I think he's engineer from AKG or someone like this.
and
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