Lehle DUAL EXPRESSION User Manual

4
LEHLE GmbH · Germany · www.lehle.com · support@lehle.com
Express yourself, twice!
The LEHLE DUAL EXPRESSION is an ac-
tive, wear-free expression pedal equipped
with a precise magnetic sensor.
Known from the LEHLE VOLUME pedals,
this sensor uses the Hall eect, named af-
ter Edwin Hall, to measure the strength of
magnetic fields.
In the LEHLE DUAL EXPRESSION the
Hall sensor is accurately calibrated to the
built-in magnet and the control range of
the pedal – where the pedal moves only
the magnet, whose distance is measured
by the Hall sensor.
Two digital potentiometers, working with
analogue voltages, are used for the pre-
cise and reliable generation of the ex-
pression data.
This technology allows distinctly more
accurate operation than is oered by
conventional expression pedals with
mechanical potentiometers. There is no
mechanical wear, avoiding the need
for maintenance or complicated adjust-
ments.
Both outputs can control nearly all com-
mon devices with expression inputs from
5kΩ to 100kΩ, regardless if TS, TRS or
RTS – the polarity can be switched and
stored using the soft-push buttons.
Alternatively, the 10K output can be set to
work as a latching or momentary switch,
if the pedal is pushed in fully toe position.
Then, e.g. the channel of an amp can be
changed or, connected to a switch-input
of a digital device, any desired function
can be controlled.
In use, the LEHLE DUAL EXPRESSION is
extremely smooth and steady under foot,
as it is equipped with low-friction bear-
ings of a high-performance polymer. By
means of an adjusting screw the mobility
of the pedal can be modified with great
precision.
Compared to the LEHLE MONO
VOLUME we were able to reduce the
weight by 50% and the size by 35% – with
the same rugged stability. It’s even 2 cm
flatter, however the pedal range stays the
same - just as comfortable and respon-
sive as the larger models.
Light, small, and twice the precise
expression:
LEHLE DUAL EXPRESSION.
INTRODUCTION

Lehle DUAL EXPRESSION Specifications

General

Brand	Lehle
Model	DUAL EXPRESSION
Category	Music Pedal
Language	English