The Lehle Dual enables you to switch via
gold-plated relays between two amps or run your signal to both of them.
A is electrically isolated from B by means of a high end line splitter,
so humming loops are impossible, even if A and B are switched on
simultaneously. During this dual mode you can reduce gain with trim-pots
for output A or B separately. The result will be a third previously
unheard sound.
1.
Input signal The input signal enters this socket. The signal is
automatically routed to A and B if the Lehle Dual is not energized.
2. These trim pots make it possible to reduce gain for Output A or B if
the pedal is in Dual-mode. A gain of 6 dB can therefore be balanced out
during parallel operation of two amps. For example, by using a high-gain
amp on A and a clean amp on B a slightly distorted sound can be created
within the definition of the clean amp (B) and the attenuated high-gain
(A).
3. Output The signal is routed directly and without semiconductors via
gold-plated relays to Output A or B provided the button for A or B has
been pressed. The other output is then muted. A is electrically isolated
from B by means of a high-end line splitter - humming loops are thus
impossible, even if A and B are switched on simultaneously.
4. Power supply The Lehle Dual requires a power supply of between 8 and
20 V. Polarity is of no importance. The supply voltage is internally
rectified and stabilized in order to guarantee trouble-free operation. A
thermal cut-out automatically trips and switches the unit off if a
short-circuit occurs. A correctly fitting plug connector for the
power-supply jack of the Lehle Dual is supplied. This can be soldered to
the required power unit if necessary.
5. Master-Slave with other switchers Each Lehle Dual can be easily
retrofitted with a DIN socket in order to permit parallel operation with
other Lehle switches in master/slave mode.
6. LEDs behind a magnifying lens The high-intensity LEDs behind a
magnifying lens makes it easy to read the switching state (A and/or B)
even under spotlights.
7. Indestructible switching mechanism Buttons which initiate Condition A
and/or B are actuated in the interior of the switch by means of a
virtually indestructible switching mechanism.
8. Solid box / easy to fix The base of the Lehle Dual can be secured
without difficulty. First remove the four housing screws for the cover,
and then screw the base of the switch to a base-plate using the two
screws supplied with the unit, the washers and the spacer elements.
