The Lehle 1@3 Amp Switcher Pedal
The Lehle 1@3 can be used
in 1 of 2 modes: Mode 1 enables you to switch between three amps - the
signal is routed (without semiconductors) directly via gold plated
relays to 1 of the 3 outputs: A, B or C. The other 2 outputs are muted.
Mode 2 allows the user to plug their effects chain into the special C-B
input (Output C is muted). In this mode, the effects chain is tied into
amp B as follows: when "B" is depressed, the input signal is routed to
amp B - dry (effects chain bypassed); when "C" is depressed, the input
signal is routed to amp B - wet (effects chain engaged). The Lehle 1@3
can use any power supply between 8 and 20 V with either polarity (AC or
DC). The supply voltage is internally rectified and stabilized in order
to guarantee trouble free operation. High intensity LEDs behind a
magnifying lens makes it easy to read switching state (A, B or C) even
under bright spotlights. All Lehle switchers are totally passive. To the
purist, what this means is that the great tone you bought your
particular tube amp for in the first place will not be compromised.
Active switcher boxes (with their resultant change in impedance from
high to low) cause an amp's crunch/distorted tone to become fuzzy. Lehle
switchers maintain that unique interaction between guitar and amp, as if
there is only a high quality cable in between.