I am selling a base amplifier here for a retired local who has moved into a retirement home. This is a 4 pill 110v base amplifier with 2879 finals. I have no idea if it's a class C, B, or AB, it does have a SSB delay switch. I have tested this amplifier and depending on the radio on AM I am getting 300-420 watts peak from it. This is on an Aries 460 digital meter. I did notice the fans slow down when you key it up and talk, then they speed back up. I will pack this unit very well. Shipped to your door $260.00. CONUS only please.