After spending weeks with the Rev2 and a Rane ME15S graphic EQ, that's been permanently attached and enabled, this is my favorite way of making the Rev2 more fat, more analog, more warm, a complete pleasure to use across all patches.
25Hz: +0.75
40Hz: +0.75
63Hz: +0.75
100Hz: +0.75
160Hz: +0.3
250Hz: -0.3
400Hz - 10k: flat
16kHz: -1.8
So pump up the bass just a touch, notch out a little high bass, keep the mids flat, and notch out the highs a bit. There's also something euphonic going on with my Rane where it's creating a wider stereo field that sounds incredible (YMMV), and it sounds the same in mono, with no phase cancellation, so I'll take whatever the heck it's doing.