@Nseals,
Check out:
PRESONUS Audiobox
M-audio fast track
But the thing about your A5 speakers is that they take in 3.5mm stereo. :/
I can't think of a better way now, but you can use M-audio fast track's RCA (left&right) to a single 3.5mm into your A5.
As for Audiobox, you'll need to convert individual LEFT and RIGHT 1/4" to merge into a 3.5mm into your A5. (not sure if that's possible. If possible, not sure how lossy it would be.)
Just make sure when you buy the audio interface, it'll be able to feed into your A5's 3.5mm.