· The Lehle Dual SGoS routes the signal via gold-plated relays to outputs A · B or T. Outputs A and B can feed two different amps simultaneously since the signal paths are electrically isolated by the Lehle LTHZ high-end transformer †completely eliminating humming loops. In this case · the potentiometers enable you to lower the output signal for A and B separately. Output T can be used for a tuner or a third amplifier.