[Leo7]

Hi,
 
I have a pair of JBL Lsr305 and CAL!2 headphones , i want to get a new DAC. Between Xonar DX and FiiO E10K which will sound better?

 

[cel4145]

Xonar DX does not have a headphone amp.

 

[Leo7]

Xonar DX does not have a headphone amp.

I know, but i think the CAL!2 don't need amp.

 

[PurpleAngel]

  I have a pair of JBL Lsr305 and CAL!2 headphones , i want to get a new DAC. Between Xonar DX and FiiO E10K which will sound better?

 
The E10K come with a dedicated amplified headphone jack and a separate line-output, for speakers.
Where as the Xonar DX comes with a shared Front Speaker jack that also pretends to be a headphone output.
The Xonar DX comes with Dolby Headphone surround sound, while the E10K comes with no headphone surround sound feature.
 
The Creative Labs Sound Blaster Z sound card come a with separate amplified headphone jack and Front Speaker line-output jack.
and also has SBX Headphone surround sound.

 

[Leo7]

The most important thing for me will be the sound quality. I read a lot of good things about DX and also about E10K, but i didn't find a comparison between them.

 

[cel4145]

I know, but i think the CAL!2 don't need amp.

A smartphone, a tablet, an mp3 player, many computer sound cards--they typically have some kind of headphone amp attached to the built in DAC because headphones do need it. What the Cal!2 don't need is a more powerful headphone amp than what is usually available in electronic devices. So yes. The DX would be better with some kind--any kind--of headphone amp attached since the DX doesn't have one. It's not that they won't work. They just won't be sounding quite the way that they are supposed to.

 

[PurpleAngel]

  The most important thing for me will be the sound quality. I read a lot of good things about DX and also about E10K, but i didn't find a comparison between them.

 
The E10K being an external using a digital connection, keeps the E10K from picking up any electrical noise that might be generated inside the computer
I'm going to make a guess(?) that the E10K and Xonar DX are roughly equal for audio quality.
The Xonar DX's 100-Ohm output impedance might cause some headphones to have a bloated (louder, less detailed) bass.
Where as the E10K's less then 1-Ohm output impedance helps improve the audio detail coming from headphones.
You might see which offer more of the features you might need.
The Xonar DX was designed about 5 years ago, the E10K is a less then year old revision of the E10.
So my vote is for the E10K.

 

[spitf1r3]

I dont't have those two but i have Xonar DS and FIIO E07k. Xonar has little more details but the FIIO is overall 2 classes above my Xonar. I mention i have stock opamps on Xonar.