For those of you that haven't heard of it or seen it here's the Hifonics Maxximus,looks pretty beastly.
Maxximus
The Maxximus subwoofers are a two part (sold separately) "Frame in Frame" assembly consisting of the BASS-FRAME and CONE-KIT.
The BASS-FRAME consists of a pre-assembled 540 oz. triple stack magnet assembly and an ultra-rigid die cast aluminum speaker frame with self centering guide holes to perfectly align the CONE-KIT assembly. These are available in 12", 15" and 18" sizes.
The CONE-KIT which is available in 12", 15" and 18" sizes, 0.7 / 1.0 / 1.4 and 2.0-Ohm DVC coil configurations, consists of a pre-assembled "W" style surround, Vinyl Embedded - FEA pressed paper cone and dust cap, 4" Flat Wire -- High Temp -- Black Aluminum Former, Triple Stacked Conex Damper with 6 parallel wired tinsel leads all precision aligned with-in a stamped steel reinforced assembly frame to "drop right in" to the MAXX-FRAME assembly.
The MAXX-FRAME and CONE-KIT combine to make the Maxximus subwoofer one of the most versatile and technologically advanced subwoofer kits you can buy. In the event of a damaged part, the Maxximus can be re-coned in minutes with out cutting, grinding or gluing. Simply remove 16 screws securing the CONE-KIT to the BASS-FRAME, remove the damaged CONE-KIT and insert the new CONE-KIT and screws.
These subwoofers are designed for the highest possible SPL readings and unparalleled performance and power handling.At over 6000 watts of continual power handling, these subs can take a massive beating and continue to handle all the abuse you can through at it. BASS-FRAME MAXX12-540: 12" frame and magnet assembly MAXX15-540: 15" frame and magnet assembly MAXX18-540: 18" frame and magnet assembly CONE-KIT MAXX12-0.7: 12" / DVC 0.7-Ohm MAXX12-1.0: 12" / DVC 1.0-Ohm MAXX12-1.4: 12" / DVC 1.4-Ohms MAXX12-2.0: 12" / DVC 2.0-Ohms MAXX15-0.7: 15" / DVC 0.7-Ohm MAXX15-1.0: 15" / DVC 1.0-Ohm MAXX15-1.4: 15" / DVC 1.4-Ohms MAXX15-2.0: 15" / DVC 2.0-Ohms MAXX18-0.7: 18" / DVC 0.7-Ohm MAXX18-1.0: 18" / DVC 1.0-Ohm MAXX18-1.4: 18" / DVC 1.4-Ohms MAXX18-2.0: 18" / DVC 2.0-Ohms