Originally Posted by Sly

Rokit's are more meant for EDM and heavy bass. If you want to be hearing the nice higher frequencies of old classics, you are not going to want those. I have a pair of Yamaha HS8 and they are absolutely beautiful, they also make a HS5 which is more your size.

There are lots of great options for audio interfaces, really depends on what you want to do with it. I have a Mbox 3 which works great with everything but that's overkill for you. Check out a Focusrite Scarlett, should be fine.