The (LEE-La) Lehle Mono Volume Pedal is equipped with a precise magnetic sensor enabling it to operate almost wear-free. This sensor uses the Hall ef...Click To Read More About This Product
Controlled by precision magnetic (Hall) sensorr, rather than a potentiometer, for longer-lasting, smooth performance.
The (LEE-La) Lehle Mono Volume Pedal is equipped with a precise magnetic sensor enabling it to operate almost wear-free. This sensor uses the Hall effect, named after Edwin Hall, to measure the strength of magnetic fields. In the Lehle Mono Volume the Hall sensor, which is made in Germany, is accurately calibrated to the built-in magnet and the control range of the pedal. The pedal moves only the magnet, with the distance measured by the Hall sensor which controls a VCA.
A premium Blackmer VCA (Voltage Controlled Amplifier) from the United States replaces here in this case the mechanical potentiometer. The principle of the voltage-controlled amplifier is based on the fact that gain can be varied by the control voltage coming from the Hall sensor. This technique allows to operate more precisely than conventional mechanical potentiometers or optical sensors used by the standard volume pedals. In addition, the potentiometer-typical noise and the complicated adjustment are eliminated.
Over the entire control range, the Lehle Mono Volume transmits the full-sound spectrum of the connected instrument. The input and output impedance always stay the same, ensuring that there will be no damping of higher frequencies as with potentiometers.
Internally, the input voltage coming from the power supply socket of the pedal is rectified, then filtered, stabilized and doubled to 18V, achieving a total dynamic range of 110 dB.
The volume control of the Lehle Mono Volume ranges from -92dB to 0dB – from a virtually muted level to the same volume. With a potentiometer, a gain up to +10 dB boost can be additionally adjusted.
Mechanically, the Lehle Mono Volume runs extremely smooth and steady, as it is equipped with low-friction bearings of a high-performance polymer, and there is no mechanical transmission of the pedal to other components. An adjusting screw makes modifying the mobility of the pedal very precise. Furthermore, the Lehle Mono Volume has a buffered direct out which can supply a tuner, DAW or a second amp without affecting the sound.</span>
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