The PW150TFX is 150 watts and is the first Powerwerks Tower to feature a dedicated Monitor Out as well as a seperate Subwoofer output. The PW150TFX allow features 4 built-in effects: Room Reverb, Hall Reverb, Chorus+Reverb, and Delay+Reverb. The Powerlink Circuit allows two or more units to be linked together and function as one P.A. system. As your following grows, so does your sound system. Multiple units can be connected to increase the sound coverage in your venue of choice.