1. Input socket
Connect your instrument to this socket.
The Lehle Sunday Driver processes signals
from electric and acoustic stringed instruments,
such as electric guitars and basses, western
guitars, classical guitars and all kinds of stringed
instruments. This new, compact preamp has no
trouble balancing out low signal levels, and elimi-
nating sound losses caused by long cables and
treble pickups.
Note: In battery mode, the battery circuit is auto-
matically activated when a cable is connected to
the input socket so always ”pull the plug” when
you’ve finished your session, or are taking a
longer break!
2. S/D-selector switch
Use this switch to select the mode you want.
This gold plated-contact switch enables you to
change between the two sound modes. Mode
D for ”Driver” (switcher pressed) selects neutral
amplification, and the incoming signal is ampli-
fied at the input impedance of a guitar amp, of 1
MOhm, efficiently eliminating sound losses caused
by long cables and/or effects cascades. The signal
remains strong and clear, and retains its dynam-
ics. In mode S for ”Sunday” (switcher not pressed),
the input impedance is multiplied by four, to 4
MOhm, making previously unsuspected details
suddenly audible and imparting an unmistakable
and characteristic warmth to the sound when the
gain knob is turned up.
3. Output socket
Connect your target device here.
For instance, an amplifier, a mixer panel, a stage-
box or a soundcard.
4. External power supply
Connect a power-pack for a voltage of 9 to 20 V
here, when needed.
The Lehle Sunday Driver can be operated op-
tionally with a 9 V PP3 (”block”) battery or from an
external power supply, which should provide not
less than 9 and not more than 20 Volts. Polarity is
not important here, and both AC and DC sources
can be used. The supply voltage is internally recti-
fied, filtered, stabilized and then doubled to 18
V. A connector for the Lehle Sunday Driver’s
power-supply socket is included in the pack; if
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General