I'm building a final 7*240W @ 8 Ohms (or 7 * 400W @ 4 Ohms) this fall.
Using 7 Coldamp class D modules and 2 Coldamp SMPS power units.
All arrived, look lovely.
Best thing: no excessive weight, almost no cooling (91% efficiency while class D,AB,B are only 30...45%).
See my other postings on the subject.
Will test this amp against my 7700.