DarkDraco

i'm using a Shure SM7B with a cloud lifter plugged into a boss rc-505 loop station i had a few questions after being recommended to get a digital interface to go with my hardware 1.is what im using compatible with pod farm 2.5 or does it only support line 6 interfaces 2. what is the purpose of having a digital interface if i already have a hardware one and does it really make that big of a difference