DESC: Powerful COSM amp-models include - Acoustic, Overdrive, Distortion, Metal, Metal Stack, and Tube Drive. Onboard flanger, phaser, tremolo, chorus, reverb and delay. Equalizer - Bass Knob, Middle Knob, Treble Knob, Channel Select Switch, Power Squeezer Switch, Power Switch Lead Channel Type SW (Overdrive, Distortion, Metal, Metalstack), Volume Knob, Gain Knob Power Supply - AC 117 V, AC 230 V, AC 240 V (50/60 Hz) / Power Consumption - 24 watts