Loved the Fusion 550. Not even sure why I sold it. Was downsizing at the time as it has been 7 or 8 years since I had it. I am running a Fusion 212 currently. Just more GK goodness. Also want to add a Legacy series head.
The term I have seen before when referring to the 700 was it "hit the rails" easier than the bigger RB heads. I guess that means it sweet spot was easier to achieve at lower volumes.
On the RB "hitting the rails thing" from the Poweramp section I do notice that that sweet spot of warmth coming from the 700 even though the controls are set identical is not there on the 1001 but seemingly unlimited clean headroom. Until I boost the master a touch. Which is why I only bring the 1001 to large stages and outside shows where I can open it up.

