The EHX Bass Mono Synth from Electro-Harmonix transforms your bass into eleven great sounding synthesizers...from vintage synth emulations to thick, stacked voices to deep pulsing sounds and more.This multi-oscillator monophonic instrument synthesizes one note at a time per oscillator. The oscillators have been pre-tuned for each synth type - only the synth type SPECTRE allows for user control over an oscillator. Additionally it can handle only one note from your bass at a time. It does not work properly when chords or two note intervals are played.The Bass Mono Synth's intuitive layout makes it easy to use and easy to dial in good sounds quickly. DRY controls the volume of your dry bass signal at the Synth Output. SYNTH controls the volume of the Synthesizer sound at the Synth Output. Used together they let you create just the right mix. The SENS control, short for sensitivity, adjusts how your playing dynamics trigger the synthesizer and allows you to fine tune the way the pedal responds to your bass rig and playing style.With the CTRL knob you can adjust a key parameter for each of the eleven synth types. It varies depending on the preset and provides more tweakability for customizing your sound. There’s also an EXP input which lets you control an entirely different parameter in real-time with an expression pedal!Using the built-in Preset footswitch, a user customizable preset for each of the eleven synth sounds can be created, saved and recalled. The factory presets are also easy to restore should you wish to.From lush, warm sounds to sharp, percussive stabs, the Bass Mono Synth puts a collection of cool bass synths at your fingertips.FeaturesEleven great sounding, mono synth soundsEasy to use controls let you dial in the sound you want quicklyEXP pedal input for real-time expressive control with your footCreate, save and recall eleven user presets, one for each of the eleven synth soundsEHX 9.6VDC-200mA power supply includedSpecificationsInput impedance: 2.2MΩOutput impedance (for both output jacks): 680ΩCurrent Draw: 125mA @ 9VDCDimensions in inches: 4.0 (w) x 4.75 (l) x 2.25 (h)Dimensions in mm: 102 (w) x 121 (l) x 58 (h) Electro-Harmonix BASS-MONO-SYNTH Bass Synthesizer Emulation Effects Pedal.