The BM1200WSN is a Blaupunkt 8-inch BMW-compatible subwoofer designed for compact installation, delivering 100W RMS (200W max) power with 4-ohm impedance, 86 dB sensitivity, and a frequency response of 44 Hz–3 kHz. It uses a neodymium magnet and rubber surround for efficient performance and durability, making it suitable for shallow-mount applications with a 36 mm mounting depth, 229 mm cutout diameter, and 61 mm overall height.