My experience with Gallo Customer Service has been excellent. I had a power surge that caused the Cinenova to go crazy, and sent a very high pitched loud signal to the Ref 3.1s, I thought it was a fire alarm. The tweeter on the right 3.1 went up in smoke, and I was devastated. I contacted Gallo and was given a RA# within 24 hours. 5 days to get it to them, 3 to fix it, and 4 back and I had my 3.1 back.
Can't get them big but this is what mine look like, first pic is just the first voice coil being run by the Cinenova:
Second picture is with both voice coils being driven:for those who want to see larger pics
Looking at the larger versions you can see with the second voice coil that the peak at 60hz is non existent, the null from 40-50hz is less severe, and the small peak at 37hz is less.
More importantly there are large gains below 75hz with a roughly 80hz crossover. From top to bottom, from 75hz-60hz there is a 3db gain, from 60hz-47.5hz 5db gain, from 47.5-37.5hz a 6db gain, and the huge one, from 37.5hz to 16hz a 7db gain.
Not only are my peaks less severe and nulls pulled up but I have over a 5db gain from 60hz-16hz, pretty big IMO.
Of course this is only really important if you are not crossing over the Refs, I do not have nearly as nice of a sub as you, mine is just a Earthquake Supernova 12. It has lots of output and lots of power above 30hz, but after 30 it takes a nose dive, to the point where below 20hz my 3.1s are more powerful.
I am going to continue to experiment, I may also get the SA back out of the box and try running it with the phase inverted. I got similar results with the SA, but couldn't seem to get it as flat as the Cinenova first try.