SE's are dual 4's.....He will be wiring at a total 2ohm load though. So the amp will push 1000watts rms, knowing a tahoe they have 14 volt electrical systems, the hifonics are rated at that so he should get full potential. With two dual 2ohm drivers, the best way to wire them is 2ohm total load, instead of 0.5ohm. So he will be getting 1000watts rms out of that amp, 500watt rms to each sub. That should be pretty sweet.