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Headphone directly into Esi Juli@ BALANCED out?

post #1 of 2
Thread Starter 

Hello,

 

I have a question  - is connecting an unbalanced high impedance (HD 600 / DT 880 (250/600ohm versions)) headphone directly into the  "balanced" out of Juli@ soundcard a really bad idea?

Here are the specs of the Juli@ soundcard:

http://www.esi-audio.com/products/julia/

 

Originally I bought the Juli@ to get the I2S signal to feed my DAC for listening to speakers, but now I think I'm ready to invest some €€ into a headphone setup.

 

I remember that once I got the DT 880s (don't know which version though, but I'm almost sure that it was not the 32 ohm version and most likely it was the 250ohm or the 250ohm "pro" model) for audition and back then I knew nothing about balanced/unbalanced cables nor anything about soundcard/ampilfier output impedance and without any hesitation plugged the headphone into the 6.3mm  balanced TRS out - and I actually did enjoy what I heard back then. Now, that was when I only started to get to know good headphones, so maybe I liked it only because it sounded better than anything else I've heard up to that point - meaning that maybe it did not show the full potential of the 880s.

 

The output impedance of the Juli@ is quite high - 100 ohms "minimum" (it's in the user's manual), and it's not designed for headphones, but theoretically the damping factor should be OK, at least for the 600ohm version of the DT880.

Back then the sound volume was more then adequate for the DT880s too.

Unfortunately now I can't get the 880s for audition any more.

Later I plan to get a decent amp for the DT880s, but I'm considering this as a temporary solution.

 

P.S. just found out that the TRS out is for both balanced and unbalanced jacks.


Edited by nopietns - 2/13/14 at 5:51am
post #2 of 2
Quote:
Originally Posted by nopietns View Post
 

Hello,

 

I have a question  - is connecting an unbalanced high impedance (HD 600 / DT 880 (250/600ohm versions)) headphone directly into the  "balanced" out of Juli@ soundcard a really bad idea?

Here are the specs of the Juli@ soundcard:

http://www.esi-audio.com/products/julia/

 

Originally I bought the Juli@ to get the I2S signal to feed my DAC for listening to speakers, but now I think I'm ready to invest some €€ into a headphone setup.

 

I remember that once I got the DT 880s (don't know which version though, but I'm almost sure that it was not the 32 ohm version and most likely it was the 250ohm or the 250ohm "pro" model) for audition and back then I knew nothing about balanced/unbalanced cables nor anything about soundcard/ampilfier output impedance and without any hesitation plugged the headphone into the 6.3mm  balanced TRS out - and I actually did enjoy what I heard back then. Now, that was when I only started to get to know good headphones, so maybe I liked it only because it sounded better than anything else I've heard up to that point - meaning that maybe it did not show the full potential of the 880s.

 

The output impedance of the Juli@ is quite high - 100 ohms "minimum" (it's in the user's manual), and it's not designed for headphones, but theoretically the damping factor should be OK, at least for the 600ohm version of the DT880.

Back then the sound volume was more then adequate for the DT880s too.

Unfortunately now I can't get the 880s for audition any more.

Later I plan to get a decent amp for the DT880s, but I'm considering this as a temporary solution.

 

P.S. just found out that the TRS out is for both balanced and unbalanced jacks.

 

Hope this clears something - http://www.presonus.com/news/articles/balanced-unbalanced

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