[DJShadow]

Quote:

Originally Posted by serpico /img/forum/go_quote.gif I would just exchange it for another just to make sure it's not the device. If you get the same problem with the new one, then it's probably a defect in the series. Maybe a flash model is better or just another brand.

Its definitely the 1.1 update causing this problem. I haven't experienced such problems prior to the latest update.

 

[Clutz]

I just measured the DC offset on my 80GB iPod Classic. I only found DC offset on one of the two channels, and while it was alarmingly high (ranged between about 30mV-80mV), I didn't measure it as high as 0.5V.

Cheers,
Brad

 

[Clutz]

I've also noticed that there is significant DC offset even while music is playing. I don't think I will be using any of my good headphones with this iPod until they fix this issue with the DC offset!

 

[me7]

Quote:

Originally Posted by Clutz /img/forum/go_quote.gif I've also noticed that there is significant DC offset even while music is playing. I don't think I will be using any of my good headphones with this iPod until they fix this issue with the DC offset!

How dangerous is this for headphones

 

[J.D.N]

Im really glad i haven't upgraded the firmware. Ill stay put till they sort it out!

Interestingly there isnt any talk of this over at Mac Rumors. I did mention it in a thread, but nothing.


Is anyone having issues with the LOD? Apparently that might be yet an another issue of the 1.1 upgrade. (I mean worse than the pausing/skipping discussed in the other thread)

 

[Clutz]

Quote:

Originally Posted by me7 /img/forum/go_quote.gif How dangerous is this for headphones

It's quite dangerous. It could cause permanent damage. When building a headphone amp, you generally wouldn't connect your headphones to the headphone amp unless it had less than 10mV of DC offset - and I usually wait until I have less than 1mV if I'm able to get there. 80mV is a lot. 500mV (0.5V) is really a lot.

 

[me7]

Can i measure this myself with my cheap on-board audio in?

EDIT: Is there a way to downgrade a iPod? iTunes does not offer an option for that.

 

[Clutz]

No, I don't think so. You would either need to have a voltmeter or a scope. Volt meters are pretty cheap though - you can get one at Radioshack for about $10. It wouldn't be a great one, but it would let you measure the voltage output.

 

[me7]

I found an easy way to downgrade my iPod classic. First "Open iTunes and in Preferences uncheck automatic check for updates".

If you are a mac user, read here. Windows users need a different folder. Open "Documents and Settings", search the folder that represents your username and open the hidden folder "Application Data\Apple Computer\iTunes". Now proceed like the link tells.

Maybe someone with a voltmeter can check if the issue is really not present in the older firmware (maybe it was just undetected?).

 

[Clutz]

I think I will wait for a few days to see if Apple responds to this bug before I take that route. It took me nearly 3 days to transcode & copy all my ALAC files to 256 VBR AACs

 

[me7]

You know that you won't loose your library? Your iPod will be resynced immediately with iTunes.

 

[Manny Calavera]

Quote:

Originally Posted by zumaro /img/forum/go_quote.gif Ahh the explanation for what so many of us are experiencing - hiss and static noises after the iPod is turned off. Well done Apple - your quality control department must have been fired by now with crap update after crap update slipping through?

I am starting to wonder if Apple out sourced all Ipod QA to India recently....

 

[mrdeadfolx]

Well at least I know now that my ipod isnt messed, when I first heard the afformentioned noise I was getting ready to return the damn thing.

 

[serpico]

Knowing Apple they won't update the Classic any more, and then 6 months from now charge users $20. Crazy fruit company.

 

[Amblin]

Wow. Will Apple be replacing all the Shure and UE IEMs that are damaged by this mishap?