Be aware, the Rogue Stereo 100 is really a 50w or 55w amp in Triode mode which is how you are likely to prefer listening to it. The 100wpc is in Ultralinear mode where you will get tighter bass but lose a lot of the detail and nuance that make tube amps so special. It is still a wonderful sounding amp but want to make you aware of what you are getting.
I have Rogue M-180 monoblocks and much prefer the sound in Ultralinear mode.
Here's a quote from the Stereophile review of the M-180s. I agree with their assessment of the differences.
"Early on in my listening, I did a great deal of comparing the Rogues' triode and ultralinear modes. Given my love of single-ended solid-state amps, I was sure I'd prefer triode mode. Wrong. Though triode sounded a bit more relaxed, its lack of power was very obvious in my system. Triode mode also seemed to cast over the music what I heard as a slight veil or scrim, whereas ultralinear mode played to the M-180s' strengths of immediacy and in-the-room image palpability. After those early experiments, I pretty much left the Rogues in ultralinear mode."
Perhaps with some gear triode mode would sound better?
I haven't heard the Stereo 100, so don't know if the voicing is the same, but would assume that results will be similar.