I cant help but think that both Branislav and Dodogue are the voices of reason here. Not because its what I want to hear but because I have read so many reviews/experiences in countless forums that suggest the same. In fact, the first review that turned me onto the idea of power was from Srajan in 2005. Keep n mind, this was with the 3.0s but id think the same would apply to the 3.1s in terms of sensitivity.
http://www.6moons.com/audioreviews/onix/onix_3.html
"The SP3 and Gallos tangoed as well together as the two impossibly intertwined professional young dancers during the closing credits of Robert Duvall's Assassination Tango that make the otherwise questionable movie."
"I found myself looking for road-house and boogie-woogie piano because the SP3 and Gallos really loved to rumble down low."
"Being a 1st-order series design without a network on the mid/tweeter transition, the Gallos are arguably somewhat of a forgiving load. But the plain fact remains that a $1,000 tube integrated has no business manhandling 10-inch acoustic suspension woofers with Sunfire-type surrounds like today's babe managed as easy as humble pie."
And here is a followup review on the 3.1s from John Potis that indicates the questions about using the Gallos in a small listening room.
http://www.6moons.com/audioreviews/gallo5/ref31.html
"For a long time, I've been wondering why nobody produces a SOTA speaker designed for small rooms. And I'm not talking about monitors. I'm talking about a speaker that gives near full-range bass reproduction and works well with small rooms by not overloading them. There aren't many (if any) speakers that can produce 34Hz (let alone 22Hz) in a small room without creating all manner of problems. Well, the Gallos do that kind of bass without the problems and for considerably less money than comparable monitors that won't touch them in the bass."
"Am I seriously calling the Ref 3.1 a state-of-the-art loudspeaker designed for small rooms? You bet."