Transistor Amp Head for Electric Guitar Professional 100 W amplifier with improved sound and extended functions Solo boost with built-in level control BOSS Tone Studio Editor software for customising sounds with over 60 BOSS effects Pre- and post-EQs Editable speaker emulation online, USB and phono/recording outputs External control via GA-FC/GA-FC EX footswitch, footswitch, expression pedal and MIDI0 Power: 100 W LEDs: Acoustic, Clean, Crunch, Lead, Brown, Variation, Booster, Mod, FX, Delay, Reverb, Tap, Bank, Ch1, Ch2, Ch3, Ch4, Panel, Global EQ Controls: Master, Presence, Solo , Amp Type (Acoustic, Clean, Crunch, Lead, Brown), Gain, Volume, Bass, Middle, Treble, Booster, Mod, FX, Delay, Reverb Switches: Variation, Power Control (Standby 0.5 W, 50 W, 100 W), Cabinet Resonance (Vintage, Modern, Deep), Contour (Off, 1, 2, 3), Global EQ, Booster, Mod, FX, Delay, Reverb, Tap, Bank, Ch1, Ch2, Ch3, Ch4, Panel, Expand (Off, Stereo, Dual Link), Type (Rec, Blend, Live), Custom setting (Off, M1, M2) Speaker outputs: 16 Ohm A, 16 Ohm B and 8 Ohm, 6.3 mm jack each Input: 6.3 mm jack Power Amp In/Dual Link: 6.3 mm jack Line output: 6.3 mm jack Send & Return: 2 x 6.3 mm jack Rec Out/Phones Stereo: 6.3 mm stereo jack Exp Pedal/Ctl Ch1/Ch2: 6.3 mm stereo jack GA-FC/Ctl Solo/Dual Link: 6.3 mm stereo jack Aux input: 3.5 mm stereo jack USB port: USB B MIDI input Dimensions (W x D x H): 631 x 246 x 296 mm Weight: 12.4 kg Matching footswitch: Boss GA-FC (not included)