The Level 4 m2 was designed to take even more power and get even louder than the m1. With fantastic power handling and smashing lows its hard to beat.
The Level 4 sub is a large triple stacked motor with a chrome top plate and T yoke yielding 23.5mm of X-Max.
Furthermore, you get the upgraded triple progressive spiders, cone, surround, 3" coil, cast basket, push terminals and upgraded lead wire sewn to the spider. This sub is rated at 1400w RMS and 2800w peak.