Bmw 4 Series Under Seat Subwoofer Musway Csb8w 300 Watts Plug And Play Upgrade January 22, 2024 admin This allows optimum sound even with moderate amplifier power. The CSB8W subwoofer is equipped with a 50 mm CCAW voice coil, which – due to its lightweight – achieves an amazing efficiency of 89 dB / W / m.
