Hey guys, I just added some stuff to my rig, one of which is the DBX 266XS compressor(supposedly an improved-on iteration of the XL) but I digress. When I first tried it out, I played around with it in-line...but then read that it is indeed a line-level comp. So I hooked it up to the dang ole effects loop of my amp which runs at unity gain and has no wet/dry. Now I can see the comp working...but I get no change in tone at all. I verified this by tweaking knobs all over the place and alas, no change. Does anyone with experience with these amps happen to know what could be going on? Is the FX loop foot switchable only on the Tour series? As in, is it not on by default? Any input would be greatly appreciated. Thanks in advance.