The Session 77 is remarkably affordable 100W bass combo. By using all digital circuitry, the amp will work on any AC voltage from 100 to 260 Volts without a voltage selector. It features a single channel pre amp with a 3-band EQ. It also has a separate auxiliary input for backing tracks. The combination of the two proprietary 7 inch speakers and a 2 inch tweeter gives full range reproduction of all basses with stellar clarity.Power Output: 100 RMS 2 x 7” Propietary PJB woofer + 2” Tweeter 3-Band