By Bad Seed
capable of generating greater than 120dB SPL of frequences from 20Hz down to less than 1Hz!!! Read more at http://www.eminent-tech.com/main.html . This video is the first time this invention has been shown. You won't be able to hear the low stuff on your PC speakers, they won't go below 50-100Hz for sure! The fan self-noise is filtered out in the production enclosure. See http://tinyurl.com/54srbc for how University of Hawaii recreated earthquakes with the TRW!