I'm not 100 % sure to be honest, from what I've seen it's a pre amp with SVT sounds, saw a band and the bass player had the scr di and swore by it , but he hadn't tried the Boss GT10 B
I've an Ashdown RM 500 bass combo 2x 10 and 1x 15 , I use a Boss GT10B fx processor and I'm considering adding the Ampeg SCR DI to the set up, any one else done this ?