This American-made bass amp is in excellent condition, works perfectly, and was professionally cleaned after being removed from my gigging rack. Tube preamp, solid-state power section producing 750 watts output (at 2 ohms, 550 at 4 ohms). Preamp has controls for Gain, Active Bass, Active/Passive Mids, Mid Frequency, Active Treble, Master Volume. Active/Passive input, built-in DI, footswitchable/pull-pot tube Overdrive with dedicated Drive and Master controls. Discontinued and sought-after.