Hertz MG 15 BASS (Mobile Group) subwoofer 15" (380 mm).

Hertz Mobile Group MG 15 BASS (SPL MONSTER series) subwoofer 15" (380 mm).

MG 15 Bass is the mobile assembly designed for the MM 15 UNLIMITED car audio subwoofers ; it is the ideal solution for those who look for a deep, undistorted bass. 
The innovative RMA (Removable Moving Assembly) provides the ability to replace the entire mobile assembly in few seconds, without removing the speaker from its mounting position. 
MG 15 Bass features a 60 mm long excursion aluminium voice coil wound on a four-layer KSV former as well as a Double Symmetrical Spider system and a motor design optimized to increase thermal and mechanical capability. 
The water repellent pressed paper cone is enclosed by high density foam surrounds, to ensure maximum linearity even at high excursions.