Thanks for the effort mate. I really appreciate it@Nomad i just checked the with Volume control and without it
Yes there is a difference but that is very less i checked the song with FULL VOLUME (full volume is very loud btw)
so when i played the song with controller it was sounding great as it was already
after using directly sound card the difference i felt was quite minute the sound was pinching the Ear Drum with controller the sound wasnt pinching the ear drum
if i would like to tell in percentage i guess it will 5 to 8% difference it is not something like 25% loss after using controller i hope that answers your question if i didnt explain it well let me know
I did a little more research on the web and found out that the audio control module negatively affects surround sound. Users of open back headphones like HD598 reported greater degrade than users of closed back headphones like ATH-M50x. I still would have gone for Zx model if the price difference was only $20 like when you bought it. But currently price difference is $30 and considering extra shipment charges due to bigger size box and extra weight, I bought simple Z model for $65.