I've been using the groove bass head (1200) for a few years now and recently bought a dbx266xl compressor to help even out my sound. I got a nice sound through the input of the amp but i'd rather run it through the effects loop, the problem herein lies. For whatever reason i lose about 3/4 of my volume as soon as i use the effects loop, the only thing i can think of is using a preamp in the loop to boost the output but can't experiment with that until Sunday when i am back in the practice space, does anyone know why i'm losing the volume in the first place?