Ive got the lower model of the 2 they make coupled with Digital Designs midbass. They are CRISP to say the least and they get really, really loud. Im not even running them with an amp anymore, the headunit is more than enough for my taste. I cant imagine what the better ones soundlike.Image dynamics COMP horns paired with 8" midbasses. It won't get any louder than that. It will ruin your hearing really quick.