ENGL Amplification E640 Invader 150W Guitar Amplifier Head - UsedThe 150 watt ENGL Invader amp head is a powerhouse from front to back. On the back panel you've got 2 effects loops, an on board noise gate, MIDI connection with dip switchable controls, and a ground lift switch. The front panel hosts 4 channels with Bright and Hi Gain voicings and two Master volumes to toggle between, providing myriad combinations of tone outputs to dial in and trigger on the fly. There is one tiny rip in the black covering on the