I noticed the Rogue M150s has a dampening factor closer to solid state levels, whereas the ARC tube amps spec much lower. Is that why some say Rogue has more of a modern tube sound?
I did have the ARC VT100 an really like it and would recommend it because it does so many things really well, but the bass could be a little fat and uncontrolled at times. At least on the speakers I used that were a little bassy too:)