Mens / Womens Shavers. BL-BM200XF BLAM BMW Hi-Performance Dedicated 200mm (8 inch) Extra Flat Underseat Subwoofers (PAIR). A pair of BLAM BMW hi-performance dedicated 200mm (8 inch) extra-flat underseat subwoofers. BMWs are very specific to equip, since they have very specific subwoofers under the front seats. These extra flat subwoofers are custom made to make the installation process faster and make the sound image more precise and clear. The BM200XF woofer has been designed specifically to mount in the original location. It replaces very advantageously the 165 mm woofers installed as standard in many models. It is compatible with the BMW Serie 1/3/5/6/7 and X1 / 3/5/6. Compatible with following vehicles. Car Make / Model. Extra Flat Subwoofer For BMW. Max power 120 W / 60 W nominal. Frequency response 40 to 500 Hz. Sensitivity (2.83v / 1m) 88 dB. Max power 120 W. Nominal power 60 W. Response 40 Hz – 500 Hz. Sensitivity (2,83V/1m) 88 dB. Magnet size Ø x h 31,4 x 10 mm 1,236” x 0,394′. Total driver displacement 0,6 l 0,003 cf. Weight of one component 0,565 kg 0,520 lb. Voice coil Ø 32 mm 1,260. Voice coil height 10 mm 0,394.