M 12.1 UNLIMITED and M 15.1 UNLIMITED subwoofers are exclusively designed for SPL competitions. In order to achieve the best performance on each individual race circuit, the SPL Monster subwoofers offer the ability to choose the moving assembly which is most appropriate for the overall system design, achieving maximum SPL in every competition. MM 12.1 UNLIMITED is a 12 in. (300 mm) motor group. In order to ensure constant, even flux, it features high magnetic permeability plates. The oversized magnet provides perfect control even under high excursion conditions. Basket and motor are coupled and damped through a special epoxy glue.

Features

1. High magnetic permeability plates provide constant, even flux.
2. Large double magnet; for perfect control under high power, very high excursion conditions for top SPL performance.
3. Internally reinforced basket, protected from abrasions with high resistance paint.
4. Basket and motor are coupled and damped through special epoxy glue. 

Specifications

• Component Subwoofer Motor Group
• Size mm (in.) 300 (12)
• Magnet size D·d·h: mm 2 x 230 x 25 | (in.) (2 x 9.1 x 1)
• Total driver displacement l (cu.in.) 7,1 (433)
• Magnet: Double magnet, High density flux ferrite
• Weight of one component* kg (lb.) 19,8 (43.7)