ENGL Amplification E 309 MetalMaster 20 Head 20 Watt, all tube (Preamp: 2 x ECC83, Power amp: 2 x EL84) two channel, (Clean and Lead) with separated Gain controls built-in digital reverb (switchable) Mid-Boost (switchable), 3 Band EQ, Power Soak for 8 & 16 Ohm cabs (20W, 5W, 1W, Speaker Off) Lead Volume Control, Line-out balanced (frequency compensated), FX Loop (switchable)