I am new with these purchases. I have a few questions, I am just looking to educate myself so bare with me. By the way the Headphones are great no complaints I plug them in and its heaven. Question one is I have a lil 2 speaker Logitech combination that I use for my wife cause she hates headphones when she is on the computer. So I plugged the Logitech 2 speakers to the sound card and my HD598's through the jack on the Logitech 2 speakers. Im wondering if Im messing up the sound quality by plugging the headphones into the Logitech instead of plugging it directly into the sound card? If that's the case should I invest in a jack splitter 3.5mm so I can just have them both plugged in the card at once? I really don't want to have to unplug one and plug in another for the best sound every time.