Mastro Valvolva LEM Lysergic Emotions Module
Mastro Valvolva LEM Lysergic Emotions Module
Mastro Valvolva LEM Lysergic Emotions Module
Mastro Valvolva LEM Lysergic Emotions Module
9V 850ma Power Supply

LEM (Lysergic Emotions Module)

Mastro Valvola
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For More Indepth View of Modes See our LEM Review

The LEM is a multi-head delay pedal with 8 effect modes, designed to inspire dreamy and experimental ambiances. While playing with this effect, it's easy to run into unique, hypnotic or unexpected sound environments like shimmering repeats, reverse delays, multi-head modulations, pitch shifting, lo-fi sounds and more.

Mastro Valvola LEM Lysergic Emotions Module User Manual

  • Wet

    sets the level of the wet signal.


  • Dry

    sets the level of the dry signal.


  • Delay

    sets the delay time.


  • Special

    each mode has a special efect, the Special knob controls it.


  • Filter

    sets the frequency of the analog flter applied to the wet signal. The control is fat in its central position and allows you to emphasize the low frequencies going left, or the medium-high frequencies going right


  • Feedback

    sets the number of repeats


  • Shift

    some of the controls have more than one function. The main function is indicated in white text. Hold the SHIFT button to have access to the alternate function (orange text).


  • EPX/CV

    sets the parameter that can be managed with the Exp pedal or Control Voltage.


  • Mode

    switches between 8 types of delay modes.


  • Tap

    sets the delay time (Tap Tempo).


  • Bypass (Preset)

    bypasses or engagees the efect. Holding SHIFT while pressing it will access the next preset. 


  • Trails

    when the efect is engaged, hold the SHIFT button and bypass footswitch for 3 seconds to change the bypass mode to Trails Mode (this will make the repeats persist after the efect is turned of). When the Trails led is lit the Trails mode is engaged.