Continuing the evolution of the Gallien Krueger MB bass head series, the MB800 features incredible output, increased functionality and a completely discrete FET (field effect transistor) driven preamp. With 800 massive watts of power, the MB800 can handle even the largest venues without breaking a sweat, and at 4.9 lbs. neither will your roadie. All of the controls of the MB800 are lit to indicate the current operating status including; input clip, tuning mute, Gain A, Gain B/Level-B, power amp clipping, limiter enable and EQ/Contour settings. It features the same FET technology used to create the legendary boost (G.I.V.E.) circuit found in all GK amplifiers for over 30 years is used in every stage of the MB800 preamp. Using FET devices to drive the GK four-band active EQ, Contour and Gain allows the MB800 to transition seamlessly from a full, warm, clean tone to full on GK growl.