[Stanfoo]

when i turn up the volume real loud, during the quiet parts i can hear a staticy sound, sounds like "chhhhhhhhh".
 
- what is this noise called? static? distortion?
- what can i do to remove it if possible? or reduce it? besides lowering the volume. do certain dac/amps help with this?
 
ps. when using my hd598 i barely notice it, but when i tried with hd700 i could more noticeably hear the static sound. why is this?

 

[billybob_jcv]

Please describe the rest of your system. What do you have in the chain starting with the music and ending at your headphones?

 

[Mr Rick]

Man: "Doc it hurts when I do this."
 
Doc: "Don't do that."
 

 

[Stanfoo]

Please describe the rest of your system. What do you have in the chain starting with the music and ending at your headphones?

 
hdtv -> optical out -> fiio e17 & fiio e09k -> headphone

  Man: "Doc it hurts when I do this."
 
Doc: "Don't do that."

i dont understand

 

[billybob_jcv]

Hmm, I'm a bit surprised, I was guessing it was probably coming from a low-quality soundcard, but the E17/E09K should be doing a fairly good job. Seems like it has to be either noise encoded in the digital signal that is then being amplified by the E09K, or it's noise that is being added by the E17/E09K.

 

[Stanfoo]

i think it is the noise coming from the source being amplified because i have my volume very high so i guess its normal
 
that said is there any amps/dacs that is capable of reducing this kind of noise?

 

[billybob_jcv]

Does your headphone volume change when you change the volume of your TV? If it does, then the level of the signal coming from the TV might be too low. Some TVs can be set to "Fixed Volume" or "External Audio" that tells the TV that volume is being handled by an external device, so it knows not to mess with the volume of the signal being output.

 

[Stanfoo]

nope, changing the tv volume with the control has no effect on my headphones volume. the optical audio output is fixed line