The Gallo Nucleus line of speakers are pretty big 43 x 17 x 14 inches and range from $2500 to $4000 per pair. They also go to about 30 Hz. Some use 1 "BassBall" some use 2. Also I don't believe they have resumed production on this line. I've heard them but not for awhile.
If you mean the current Micros much smaller, less costly and need to be crossed over at 120 Hz then I'm very familiar with those. Please post if you want info on Micros.