in the rules it says 1 ampifer OR 2 ampifers externally bridged... so i could get away with it.. and it has to be on there approxed list
http://www.termpro.com/dbdrag/rules/2008/amps08032701.html
subs im not 100% sure i cant seem to find the list of approved subs... but if u look at my other theard im thinking a single 15" in like a 6th order bandpass
^ designed that this morning