[m11a1]

i dont get it...

 

[S3am]

Here is finaly my first attempt to make 2RCA = 2RCA from Canare 4e6s:

 

[cyberspyder]

Want to know what REALLY sucks? When your driver DIES after finishing up a recable job. What. OMG @$%&^%*^*%^* I thought I messed up during soldering, that the left and right channels were shorting, or that the ground wasn't soldered correctly. I tested out the jack, wires and contacts and found that they ALL worked, which left the only culprit...the driver. OMG.

 

[jageur272]

Quote:

Originally Posted by cyberspyder /img/forum/go_quote.gif Want to know what REALLY sucks? When your driver DIES after finishing up a recable job. What. OMG @$%&^%*^*%^* I thought I messed up during soldering, that the left and right channels were shorting, or that the ground wasn't soldered correctly. I tested out the jack, wires and contacts and found that they ALL worked, which left the only culprit...the driver. OMG.

It may be that the driver died during the recable job

. Check for a lifted voice coil?

 

[cyberspyder]

Pardon my stupidity but how do I check for that?

 

[cyberspyder]

Some comparo pics:

Top one works, bottom doesn't.

Brendan

 

[m11a1]

Does it not work at all or is the sound muffled?

 

[Llama16]

Does the lower one have a crack in the diaphragm (in the 11 o'clock side)? I can't really tell from this pic.

 

[cyberspyder]

Quote:

Originally Posted by Llama16 /img/forum/go_quote.gif Does the lower one have a crack in the diaphragm (in the 11 o'clock side)? I can't really tell from this pic.

Nope, as far as I can tell, it's just a slight bend. And the driver doesn't work period. No sound coming from it.

On another issue, I believe I've confirmed for myself that burn-in does work and definitely exists for headphones with dynamic drivers. I've had my pair of k81DJ's for a year and a half now with constant use at about 1200 hours, and compared to a barely used pair at about 100 hours, the sound's DEFINITELY different. Like I said above, one of the drivers on the k518's broke, so I swapped in one from my k81DJ and the difference is noticeable. The older driver has much tamer and tighter bass compared to the working k518 driver which overwhelms it. I've also noticed a volume imbalance....which annoys me so I think I'm just going to swap out the remaining k518 driver with the last spare...not waiting another 1200 hours for the volumes to equalize (if ever).

Brendan

 

[momomo6789]

so i always wondered this b/c ive recabled a lot of headphones now and never had one die on my what temp are you using ?

 

[cyberspyder]

I have no idea, but the iron is rated at 25W max, so it's definitely not the iron's fault. Who knows at this point. AKG won't replace it or sell drivers to me because they don't offer spare parts.

 

[momomo6789]

hum i see no temp control on it ?

 

[cyberspyder]

Nope.

 

[cyberspyder]

Anyhow, completed project:

Brendan

 

[WayTooCrazy]

Nice re-cable! Where did you get the smaller Nylon Techflex? I can only seem to find 1/4" on Markertek.