Im about to get ether 2 Atlas 12" or 2 Atlas 15" and I was wondering how loud the 2 15" would be. Would you her it from a block away? Im pretty sure I'm getting the 2 15".
i haven't had any experience with that particular sub, but 2 15's should be a lot louder then 2 12's. but it depends on the enclosure and if you match power well
yeah the enclosure is everything. a nice ported box would easily be heard a block away with 2 of those subs. but it also depends on the car and how much the sound waves have to bounce off of.