Music to your ears that warms the soul.. Send us a message. Audison Prima APBMW S8-4.2 Single 4ohm Plug & Play Under Seat Subwoofer BMW 150w. The 200 mm (8?) APBMW S subwoofers allow a “direct replacement” of the OEM speakers underneath the front seats, making the most of the factory acoustic load and generating deep and crisp low frequencies. You can choose between S8-2 with 2-ohm impedance and S8-4 with 4-ohm impedance for improved system composition versatility. In fact, in the mid-high passive filtered system configuration, with the crossover provided, 4 of the 8-channels of the AP 8.9 bit can be configured in bridge mode delivering 130W rms to each S8-4 installed under the seat. The S8-4 can be used in a fully active, multi-amplified front system, maximizing the power of the AP 8.9 bit at 2 ohms, and employing additional 2 channels for the rear system. The Neodymium magnet used on S8-4 and S8-2 allows for greater power and control than ferrite, while maintaining the depth of installation unaltered. , if opened and will only be exchanged if faulty. VAT Receipt supplied on request. 0% Finance available upon request. Are you looking for something similar? See our other items!