Full featured FET preamp design 300W @ 8 ohms; 500W @ 4 ohmsClass D power amp and SMPSGain and volume controls for a wide range of gain settingsL.F. and H.F. Shelving EQ networksParametric midrange filterContour tone-shaping networkInput muteXLR direct output w/ground liftFan coolingMulti-layer plywood constructionHeavy-duty molded strap handleHeavy-duty metal perforated grille3 Way tweeter level control