Lehle Little Dual IIABY switcher (A or B or both) Hum and noise free switching High impedance LEHLE TRANSFORMER HZ with phase and ground switch Two different operating modes Stereo routing option Active pop suppression circuit The LEHLE LITTLE DUAL II is the successor to the Lehle Little Dual and is a maximum signal fidelity amp switcher for two amps. By using the soft touch switches you can switch between two connected amplifiers hum free and without sound loss. Two