hi, my sound card: X-Fi Titanium HD. (SB1270). everything works perfectly. I have Audio Pro T10 speaker 1) Do I need to turn off the integrated audio device on my motherboard from the bios settings, is it okay to keep it turned on for sound quality? 2) How many cm RCA (for stereo connection) cable do you think would be appropriate to buy, they say that long cable is harmful for sound quality.