grommeleur @grommeleur 5/04/2014 4 4 The Matterhorn - Worlds Largest Subwoofer The most powerful sub ever created. It was born out of a #military request #le_son_comme_arme ?▻https://www.youtube.com/watch?v=o36Kp6veJ6c #Grande-Bretagne #Bretagne grommeleur @grommeleur
