Originally Posted by NCSUZoSo
germanium, thanks for the guide!
I want to ask you a few questions though;
1) Are you using the sound card primarily with headphones (does this even benefit running 5.1 speaker setup (see my sig))
2) How much of a difference does this mod make?
3) Are you running stock opamps?
4) Did you come up with this by yourself?
1.I do use headphones but not as my main listening device. For that I use my modified M-Audio BX5's which are modified & modified Tannoy TS10 subwoofer in a similar fashion & are extremely high resolution. Can be beneficial for 5.1 surround sound as well if you short the caps in the blue box. Should be no need to add more bypasses as I found through experimentation that it really doesn't seem to matter where they are placed so much in the power supply circuit as much as just being present at all. previous experiments on other equipment suggest they can be placed even before regulated power supplies & still do the trick. The placement on this card is more for convenience than for sound but in this case it works oh so well.
2.It is a huge difference. Only positive that to me the stock card had was it's strong bass that went very deep. Low level midrange sounds were clouded before & this affected the soundstage in a negative way making it sound claustrophobic stock. Once modified the soundstage is huge with lots of depth, low level background sounds are now very clear, not clouded like before modification. High frequencies are also much clearer & sweeter, stock the cymbals & sibilance was harsh but not very revealing at the same time, now the harshness is gone & there is actually more detail & it sounds very sweet. The strong incredibly deep bass remains but no longer is the strongest point of this card, the incredible sounding midrange & sweet detailed top end is the crowning jewel of this card.
3. Yes stock opamps.
4. Idea of using bypasses not my original idea but using very large bypasses is my original idea & came about through experimentation, I found it very helpful in obtaining a consistent & highly detailed sound signature. While I can't say that shorting the coupling caps is my original idea I did come about this independently & was doing this long before coming on headfi.
Edited by germanium - 2/9/14 at 10:24am