First of all here is my equipment:
I have a Line 6 Spyder Jam amp with 2 RCA's going to the line-in of my USB interface (Behringer UFO202) and the line-out RCA's going to 2 KRK Rokit 5s. I am using Reaper as recording program.

When I am playing, the sound coming from the Rokit 5s sounds just as it would if it were coming from the amp. When I playback my recordings, they are very blown out and scratchy. This happens whether it is a clean or distorted sound. I tried messing with the volume and couldn't get it to sound normal.
Any ideas?
is the recording clipping or just a generally worse tone than out of the amp?