Hi, i dj and I am trying to record a demo/mixtape to my laptop. I have an HP tablet and the stupid thing has no line in jack, only a mic input. As I understand the mic input has a preamp built in. There is no way i can buy another sound card cuz this is built in to the computer. So if I want to record from my mixer to my laptop, what am I going to do? Is there a way to disable the preamp in the mic input on my laptop? are there such things as external sound cards?