600W Class D Subwoofer System is compact and lightweight, yet it has two integrated power amps 600 watts à double the performance of the E110 Sub A. The system makes this subwoofer an ideal choice, provided a flexible expansion of the PA system is desired elements. By means of the optional add-ons can be a maximum of two per stereo side passive E 110 Sub subwoofer and mid / high units E 835 operate together with 16 full range speakers.