iRiver H340 + Sony EX-71SL = HISS

[Snapples]

My EX-71SL are hissing when connected to the iRiver H340. It's only noticeable in quiet environment (like at home), but it's still quite bothersome.
When plugged in to a different player there is no hiss.

Is this a known problem?
I'm using 1.29 J Firmware. Maybe it has something to do with it?

 

[Febs]

Yes, it's a known issue. It has nothing to do with your firmware version. The irivers have a noticeable hiss with low impedance headphones.

 

[Snapples]

Quote:

Originally Posted by Febs /img/forum/go_quote.gif Yes, it's a known issue. It has nothing to do with your firmware version. The irivers have a noticeable hiss with low impedance headphones.

All low impedance headphones?
Good thing I didn't get the Shure E2c...

By the way, when I plug the earphones to the Line Out they hiss much less... but it sounds different.

 

[jewman]

Quote:

Originally Posted by Snapples /img/forum/go_quote.gif All low impedance headphones? Good thing I didn't get the Shure E2c... By the way, when I plug the earphones to the Line Out they hiss much less... but it sounds different.

This is because the line-out jack bypasses the internal headphone amp, and is made to be used with an external amp.

 

[jayehs]

Quote:

Originally Posted by Snapples /img/forum/go_quote.gif All low impedance headphones? Good thing I didn't get the Shure E2c...

yeah good thing you got the EX-71SL