Custom-Tuned BMW-Mini Subwoofer Upgrade – Engineered with BMW-Mini-specific electro-acoustic parameters to enhance the in-car listening experience, delivering powerful, tight bass while fully utilizing the factory enclosure’s acoustic load. Neodymium Magnetic Assembly with Inverted Acoustic Structure – Features an internal cone to maximize performance while minimizing size and weight. 38mm Aluminum-Former Voice Coil – Provides high power handling and exceptional stability even during extreme excursions. Two 5mm Gaskets Included – Ensures seamless OEM placement for a perfect fit. 2-Ohm or 4-Ohm Configuration – Optimized for maximum efficiency when paired with the AP 8.9-bit multi-amplification active system. Upgrade your BMW-Mini audio system with this precision-engineered subwoofer, designed to deliver deep, dynamic bass, precise sound reproduction, and seamless integration with factory hardware.