Please note that I have done my research (for almost 6 hours of browsing time) before I finally decided to see if I can get a better response by asking on this forum so please be gentle =P.
I've recently purchased a Beyerdynamic DT 990 PRO 250 OHMs headphones, I've plugged it into my on-board motherboard card which has the Realtek 1150 Codec (Latest one available on few latest mobos). I've also interchanged between the rear and front audio jack as to see how much AMP/DAC affects the sound quality/volume, and definitely, the on-board card which is said to be able to drive up to 600 OHM(s) sounds much better.
However this is my question:
All the research I have done proves that an external dac/amp or a dedicated sound card will help with improving my sound quality, however, these are in the past wherelse the latest technology (as of year 2014) where the Realtek 1150 codec chip is said to be on par with the Xonar provides up to 600 ohms of amp and also is an automatic DAC converter. Would this be sufficient to ensure that the headphones is receiving what it's worthy for to provide me with the peak quality it's supposed to achieve? Or has anybody tested both and still noticed the vast difference in getting a dedicated soundcard/external DAC&. I have no issues with the current sound however I also do not have something else to compare it with, and I was just wondering how much/vast difference will it make as I have to invest 100-150 (Creative sound-Z card) extra dollars which isn't little =P.
Thanks for reading hope to get a response soon, cheers.