Each cab measures 2.4 meters wide x 1.2 meters deep x 600 mm high.
The driver in each cab is a modded version of the V18-1200 and the horn length is 5 meters. You need all 4 cabs to make up a horn with a big enough mouth to be able to make use of the 5 meter horn length. You can use 2 cabs, but there is a drop off below 35Hz then. The throat of the Rubics design places even loading over the entire cone, so its not like a normal scoop with a throat at one end of the front chamber. The throat is placed centrally and in the middle of the rear of the driver in this design.
Each section is 1200 x 1200 x 600.
I've built some matching amps for the Rubic horns too. The Infinite 10's do 5000 watts per side into 4 ohms, meaning each driver gets 2500 watts. A compleate stack of 2 horns would then get 20,000 watts.
Tread im Forum von Rog Mogale:
http://www.speakerplans.com/forum/forum_posts.asp?TID=14904&PN=1