The Lehle Mono Volume is a volume pedal 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, the distance is measured by the Hall sensor which controls a VCA.

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.

The Lehle Mono Volume runs mechanically 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. By means of an adjusting screw the mobility of the pedal can be modified very precisely.

Weight 1480 g Length 260 mm / 10.2" Width 100 mm / 3.9" Overall height 66 mm / 2.6" Supply voltage 9 - 15 V DC Current consumption 50 mA Total harmonic distortion < 0.05 % (-10 dBu, 1 kHz) Impedance input 2 MΩ Impedance output 500 Ω Max. level 3 V RMS / 11.8 dBu (at 12 V input voltage) Level noise floor -102 dBu (A-weighted)