Please bear with me, I'm computer illiterate. I just bought a new Dell desk top. Before that I had the same old Gateway for 10 years. The new computer works well, but it sounds like ass. I ran the old computer into a vintage Marantz into a set of Dahlqvist speakers. Same setup I've used forever, I am really familiar with its sound. This new Dell sounds like a transistor radio hooked up the same way. Why? What can I do to make it sound better?