Lehle Dual SGoS, Switcher, For two amps plus tuner with high impedance LTHZ transformer and gain reduction, The Lehle Dual switches the signal via gold-plated relays to outputs A, B or T, Outputs A and B can be operated at the same time on two different amps, since A to B is galvanically isolated by the high-end transformer Lehle LTHZ - ground loops are thereby excluded, With the potentiometers, the outputs A and B can be attenuated separately, The output T is available for a tuner or a third amp, The two inputs can be stereo-routed to outputs A and B., In addition, the Lehle Dual has a gold-plated phase reversal and a ground switch, The Lehle Dual can be controlled via MIDI and networked with other Lehle SGoS switches, Power supply available as an option