Magico's latest subwoofer is like almost no other, with it weighing in at 177 kg and capable of outputting 6,500 W of power. The subwoofer has a frequency response of between 10 Hz and 150 Hz too, with a 136 dB peak volume.
https://www.notebookcheck.net/Magico-Titan-15-177-kg-subwoofer-presented-that-delivers-up-to-6-500-W-of-power.583007.0.html