If you’re getting a crackle sound it normally means you latency is still a little too low or the computer is struggling. What are the specs on your computer?
The advanced mode should not be necessary to play music out of the PC..?
If it is crackling, turn the latency up a bit – I run my Focusrite at 5ms latency but that is designed to be really low (its a recording interface) – and I have a slightly newer processor than you..
The ability to use multiple sound configurations is much improved in version 8. You may want to consider making the upgrade – I think you meet the minimum specs (although make sure to double check that). In 8 you’d get both setups saved just the way you like them and then switch between them with a drop down menu. Much easier.
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