Synergy Engl Powerball

Synergy Engl Powerball, Module for Synergy System, All tube, Designed by Horst Langer and Engl Amplification, The blue channel is based on channel 3, the red channel on channel 4 of the Engl Powerball, 2 x 12AX7 tubes, 2 Channels, Separate 3-band EQs, Gain and volume controls, The three-stage cathode selector switch allows you to configure the input tube bias setting for optimal input gain and bass response ...