Transmission Lines
I have observed a near flat pink noise response in my present listening room using the Fried G3A's. The speaker has a transmission line midrange and what Bud called a line tunnel bass. The only issue I see on the pink noise response has due to with the room length and shape.
The lack of room gain and other assorted speaker/room anomalies is a real help.
In any case, I'm glad to see more folks getting into this. There's nothing like attacking and solving the problem at the source.
d.b.