Up until now, Line Array Systems were something only available to large venue professionals. As a result, prices of these systems have always been inflated and the systems themselves difficult to setup. Disgruntled by this, the engineers at Earthquake Sound decided that line array technology was something that the masses needed and deserved. The DJ-Quake 2.1 a revolutionary, portable, all-in-one line array system with performance that matches perfect with Bars, Restaurants, DJs, houses of worship and most other medium sized venues.