Which are some solid SPL subwoofers?

all depends on what you want out of it. is that amp and subs or just subs? i currently have a 15 inch lanzar opti1533d sub weighs 80 lbs 6k watt maxx and 3k watt rms paid 265 shipped and i have it on a boss ph5000d and have had the sub/amp for 2 weeks and the cops around here know me by name lol check out amazon for some good prices and compare for what you want to do.