Blackstar Series One 104 EL34 E-Guitar Head Valves 1x ECC82, 4x ECC83 and 4x 6L6, 4 Channel with 6 Modes, Clean Channel with Warm (Class A) and Bright (Plexi) Modes, Chrunch Mode, ISF Tone Control, Presence, Overdive channel with Crunch and Super Mode, Two overdrive channels with high and low output damping, Master Volume, All Valve Effect Loop, Midi in & out, Speaker Emulated Output, incl. Footswitch