Hertz MM 15.1 UNLIMITED
- High magnetic permeability plates provide constant, even flux.
- Large double magnet; for perfect control under high power, very high excursion conditions for top SPL performance.
- Internally reinforced basket, protected from abrasions with high resistance paint.
- Basket and motor are coupled and damped through special epoxy glue. 
 
Specifications:
- Component Subwoofer Motor Group
- Size mm (in.) 380 (15)
- Magnet size D·d·h: mm 2 x 230 x 25 | (in.) (2 x 9.1 x 1)
- Total driver displacement l (cu.in.) 9,2 (561)
- Magnet: Double magnet, High density flux ferrite
- Weight of one component* kg (lb.) 22,9 (50.5) 
