This is the Mitsubishi Dialtone D160, the largest subwoofer ever, constructed in the 80's. It weights 800kg, it can easily break windows and it produces small earthquakes which can be felt as
2013 Mitsubishi Lancer Evolution upgrades his sound! — Twelve Volt Technologies
Caisson pour Mitsubishi
Fermée subwoofer woofer MDF caissons de basses pour Mitsubishi Lancer Limousine | eBay