at that power, any of the subs will do great, I have heard all three on different occasions, I think the MAG is the most versitale, it can take the most power and the most abuse, and seems to be flexiable on box sizes, it did very nice for me at approx 400 watts, but the price is higher the RL-p is an excellent sub, at a great price, but it is more of a ported box sub, SQ on this sub is top notch also, but only comes in dual 4 right now, unless you find a used one, I believe effendi has one in the classified section on here, the A/D/S is a solid sub, I did not get to test it the way I was able to the previous two, it is more so a SQ sub that does not need much power, so anyway, I would personally knock the A/D/S off the list, (and keep in mind I am an old A/D/S fan) you need to figure out if you want to spend the money for the MAG because (if new only) it is probably your best fit, if you want to track down a used RL-p D2 you could still have an awesome set up, either way SoundSplinter and StereoIntegrity have the best customer service going anyway good luck