Well now.I just have two type r's on 1500 Watts and I think its pretty loud. So I'm easy to impressI don't know what your definition of super loud is, but yes, I can design an enclosure for them.
I've been really sick the past week or so, I am currently down. You can email me and I'll reply when I'm well. Sorry if this is inconvenient for you.
http://www.incriminatoraudio.com/index.php/products/subwoofers/i-series-subwoofer.htmlI'm not sure what they would recommend for those woofers. I haven't had a chance to design with the I series woofers.