How would this system perform:
Rainbow slc's powered by two channels of an eclipse xa4000 with
the other two channels bridged to run a TCsound (tc-1000) 12"
sub (sealed in a 1.5 cubic foot)
I've never owned a full range class D amp, how do they sound compared
to A/B?
Would the sub have enough power?

 

Should be good, might want more power on the sub channel at some point.

 

probably not enough for the sub.

pick a smaller (power, not diameter) sub, or id get a separate amp for it.

then amp your rears, or whatever.