I think this is the most powerful one, at least it is crazy high in watts! :D
15,000 Watts Peak
7000 Watts RMS each coil
Over 4" long throw excursion
Dual (2x1ohms) 4" x 8" High Temp military grade flat wire voice coil.
(4)Quad Nomax / Romax spider construction
8 gauge speaker connections
can you imagine the punch this speaker packs?
i cant imagine this thing being installed in a car!