i beleive the the Adire brahma is a Dual 4 ohm sub, the brutus does 1000x1 at 1 ohm, i'm not sure if they'll make you one in dual 2 ohm so you could run it at 1 ohm. You'd be better off coping at hifonics 1500d, it'll do 1000 watts at 2 ohms and will pound that brahma, the brahma will take it easily...
jeff you got it backwards.... they make them dual 2 ohm standard.. buy fir a few bucks more they will make them in dual 4... the bx1000d is the same amp i use. and i love it.
if the amp is one ohm stable, which i believe it is. then i wouldnt even worry about getting it four ohm. you could even get a brutus 1500bx which is a little more, but 500 more watts for like 50 more bucks. and it is 1 ohm stable.