This 3-channel PA/keyboard amplifier enclosed in a bass reflex cabinet has a special, beefed up 12″ woofer and a custom-made 1″ tweeter, delivering clear, clean sound. Behringer includes an internal 24-bit digital FX processor with 100 awesome presets including reverb, chorus, flanger, delay, pitch shifter, and various multi-effects. The revolutionary FBQ Feedback Detection System immediately indicates any feedback frequency. Enjoy full 3-channel operation with separate volume and FX Send controls, plus there is an additional XLR mic input on channel 1 for direct connection of dynamic microphones. Use the dedicated 5-band graphic EQ to give your sound your very own edge. All in all, the ULTRATONE K900FX amp offers a perfect balance of power and value in a sturdy, gig-ready package-at an unbelievable price!