Lehle Sunday Driver Buffered Line DriverThe Lehle Sunday Driver is a high end preamp with a convenient compact format. It features JFET based circuitry and provides two modes of operation, with selection via a mode selector switch with gold plated contacts: "D" stands for Driver; in this mode, the guitar signal is amplified, with absolutely no modification, at the input impedance of a guitar amp, efficiently eliminating losses on the route through leads and effects; the signal remains