[Brian]

Finally got my 580s yesterday, and after a 24hr breakin, I put them on...to discover that the left channel is much softer than the right channel. I tried using a different amp, and I tried using both the 1/4" and 1/8" plugs but both seem to suffer this problem. Sometimes the sound drops out completely in the left channel too, until I turn the plug in the amp's phone jack.

I think I've heard of others having this same problem, and I saw a bunch of posts about it on Headwize, which are temporarily out of commission since they are over 1 year old though. Is there anything I can do, or do I have to contact Sennheiser for a replacement cable or what?

Thanks,
Brian

 

[wasifazim]

Well, you can either contact Sennheiser about replacement headphones or cords (they're really good about this, provided it's a genuine problem), or you can use Caig ProGold or another similar product on the headphone cord plugs...

 

[kerykeion]

Is there a loose/intermittent connection into the left driver? If so, just use the Caig ProGold stuff on those connects.

I also think that the drivers in the Senn 580 aren't matched as closely as they are in the 600...

 

[dhwilkin]

True, the drivers aren't quite as closely matched in the 580s, but that has nothing to do w/ Brian's problem. I forget if ProGold was the product everybody was using to treat this or not. So either something is loose or it's just a bad connection. Do a search here and on Headwize, there should be several threads that talk about this.

 

[kerykeion]

Quote:

True, the drivers aren't quite as closely matched in the 580s, but that has nothing to do w/ Brian's problem. - dhwilkin

I see that Brian only has connection problems, but also had the idea that if the left-right drivers were not closely matched, then one might sound louder than the other.

And on the same note, I only find that Grado mentions their driver matching tolerances...

 

[dhwilkin]

Quote:

kerykeion said... I had the idea that if the left-right drivers were not closely matched, then one might sound louder than the other.

I suppose it's possible, but that'd have to be an extremely bad driver mis-match. I'd like to think Sennheiser's quality control (at least for getting drivers w/in certain tolerances) is better than that. Besides, he said the sound would sometimes drop out entirely for a short time. That sort of problem comes from physical damage or loose connections, not mis-matched drivers.

 

[Brian]

Thanks for the info guys. It's definately not a case of mis-matched drivers, the left channel is about 50%-70% the volume of the right one...it does seem to be an intermittent connection problem.

Since I just got the phones a day ago, I'd rather not send them in just yet and have to wait another week to enjoy them. So what is this ProGold stuff and how would I use it on the connectors?
Also where is this available?

Thanks

 

[Redwoood]

I would send them in, Brian.
I mean they're just one day old, that's practically DOA.

If you start messing around now you might loose your warranty, and you don't want that, right?

Bye

Redwoood