So looking at it a bit more. Typically the RCA are pre-amplified so they are basically the same audio just pre-opamp. It's been a few years since I had this sound card. I never ran much EQ on this card as a like a very neutral sound. I did feel like it gave the sound a bit of a warmer sound but...

What steps did you exactly do? Did you follow it to a "T"? Were the Op-amps changed out and what caps did you use? Some of the caps are linked to different channels. I am trying to remember how the RCA-out is wired compared to the Headphone. I used the exact same brand caps, and also upgraded...

Greetings, I have done this mood on my ZXR and it sounds fantastic. I'm looking to get a x7 for a more modular choice and not need a PCI-e devices. Is a similar mod possible on the sound blaster x7?