So I finally took the plunge and sold my ol trusty Shuttle 9.0. It has gotten the job done very well for several years but I'm officially moving away from micro amps. I just purchased a two month old 1001RB II from another TBer and had a few questions to get me started. Also if you just love these amps feel free to post that or any other info as well and be sure to post pics of you RB amp/rig. I 've not played this amp though I'm familiar several other GKs so I'm not too worried. My primary tonal goals are clean marine and power. I run a full range custom 4 ohm 2x12 and one cone has a whizzy for the high end (I prefer this setup with overdrive) though I know the RB addresses that in a unique way too. I usually get my overdrive from an OCD V3 and not the amp as this works well with my pedal board. That being said I fair well plan to explore the Boost control as much as possible. Exactly what is the Boost control doing? My main question about the amp is how well does the FX loop work with a Compressor? I have a DBX 160A I run (all the time) and it only has line level inputs. I do have a DBX 163X (which has instrument level input but way less control) I could use if I had to but would rather use the 160A. Also going from 9.0 to this amp what differences/learning curves am I likely to expect? What in particular do you like about 1001RB and how long have you had yours? How does the master work if your not using the 50 watt Hi amp side? Post all the pics and 1001RB stories you'd like as the more the merrier.