Sound like overkill?
opinions? Its always better to have to much than not enough power, and that's not even to much.
Personally, I think he's over-his-head on what he's doing. Unless he's going to do a 1500.1 or 1700.1 per sub, a massive custom alternator, and probably a Deep-Cycle large capacity battery he's just going to make noise and sound/perform like crap.
But to answer your origional question, I don't think it's too much. But I do think there's a lot of other stuff that needs to be taken into account and modified before those are just "dropped in".
Side note: I run a 10" Adire Audio Brahma off a Brutus 1500.1 in a ~1cF ported enclosure in my Jeep; it brutally strains the charging system; but I can dump all the amp has into the sub and the sub just asks for more. My single 10 in that TINY enclosure is louder than most multi-sub "thump machines" that trump the neighborhood; not to mention it sounds a TON cleaner.



