[Yuceka]

I just got down to try my iPad with my portable amp and i hear this unbearable hissing sound coming out of the gear. I tried the same configuration with my iPhone 3GS and no hiss at all. Is this a common problem among iPad users ? Mind you that this is the 1st generation iPad. Has anyone else run into this problem ?

 

[ExpatinJapan]

What portable amp, what headphones?
 
And have you tried to do a hard reset ( home button and sleep button until the apple logo comes up).

 

[Yuceka]

Amp is Jds labs c421 and the headphones are AT m50 and 1964 ears quads. I'll try resetting now

 

[Yuceka]

I did reset it and it still hisses

 

[ExpatinJapan]

Might take a couple of resets.
 
using an LOD?
 
gain turned down on the amp?
 
Hissing also with the headphones straight into the ipad/no amp?
 
whats the volume of the ipad before you plug in the LOD to the ipad.(try it low and high).

 

[Yuceka]

I use a low profile silver/copper LOD and there's no hiss from the headphone jack. Only from the line out. I tried the same set up with my iPhone's line out and no hiss there either. So nothing wrong with the LOD, the amp nor the headphones but withtp the iPad. I read on apple discussion pages the some people ran into this same problem but I was wondering if people in the head fi community had encountered the same thing with their iPads or is it just me.