The title pretty much says it all. I think I am at the point where in order for me to improve (production-wise), some hardware must be purchased. And I heard that an audio interface is one of them. I have heard mix opinions about audio interfacing improving sound quality, so I must know if it is worth buying.... .... I know that it is pretty much use for studio monitors (which I do not have), but I heard some, like the Focusrite Scarlett, have headphone jacks. (Of course, I am planning on buying studio monitors eventually, but I am pretty tight on money.... and I already have good headphones (imo)... Sennheiser HD280 Pro... So, is audio interface worth buying? Also, please explain why.... that would be helpful, even if it's brief. Thanks!