The ported Rumble 100 is the big daddy of the series for good reason. With 100 watts of power delivered by a Fender Special Design 15" speaker and high frequency piezo horn, it produces more boom for the buck than any other combo. The four-band EQ lets you shape the tone to taste, along with a convenient mid-scoop button, compression circuitry and active/passive switch. Other features include auxilliary input for CD player or drum machine, effects loop, headphone jack and XLR line out with level control and ground lift.