ConVertor E1

Pitch tracking, expandable oscillator alongside a studio preamp.

The ConVertor E1 merges the pro-studio into the Eurorack modular synth. Translating the natural nuances of an audio signal to analog and digital synthesizers, accurately, in an ultra-compact but expandable module. Developed from the ground up, the ConVertor E1 packs an enormous amount of features compared to its size. With a professional preamp, internal VCO, VCA, attenuvertor, analog compressor, CV compressor/expander, quantizer, DCO, auto-gain, and multiple expansion options both in software and hardware.

Sold out. Pre-ordering for the next batch is now open.
Shipping is expected in Q3 2023.

399.00 $

Pitch-tracking modular synthesizer
Pitch-tracking modular synthesizer

Product description:

With a 3rd generation technology, the ConVertor E1 is capable of detecting the pitch of the audio and synthesize a choice of four waveforms (presets) as well as extracting the pitch CV, envelope CV, and gate CV signals as accurately as possible today. Built for efficiency and stability. The intuitive interface makes controlling its plentiful functions easy. Functions that would have taken additional 7-12 external modules are now offered at a touch of a button. It offers saved/recalled from presets for a "plug and play" live performance/during expensive studio sessions where time is of the essence. An expansion MIDVerotr E1 can add MIDI output sustain pedal input, arpeggiator to MIDI and back to ConVertors, centralized control for groups of ConVertors and more all via a high-speed, bi-directional 4-pin header connection we call the "Sonicsmith bus".

The ConVertor E1’s preamp audio input can receive a balanced/unbalanced audio signal at line level, instrument level, or dynamic microphones with a clean preamp featuring a unique auto-gain of +50db range to accommodate all types of audio sources. Pitch tracking evolved to become so accurate that no filter is needed, no matter the source material or its frequency range. The ENV now has a compressor and attenuator/attenuverter. There are also separate ENV CV compressor/expanders and attenuverter/attenuater to each internal CV destination like the VCA and CV out. The FM input also has its own quantizer, and attenuverter. 6 Character LED meter reflects the input level of the audio input or menu choices periodically. VCO mode will separate the preamp from the oscillator leaving it completely independent while still providing the ENV CV out. In VCO mode the oscillator will be controlled only from incoming 1V/oct CV input.

Download below, the 2-page User Guide that shows you the functions and how to use the ConVertor E1. The ConVertor E1 can play either true-sine, triangle, square or sawtooth waves from its SYNTH output. The P-SHIFT knob is an inf. an encoder that shifts the relative pitch of the internal oscillator and the pitch CV output within a 5-octave range in semi-tones. The FM CV input can accept external CV sources to shift the pitch of the oscillator as well but can do so continuously or quantized to musical scales. With internal VCA, VCF, quantizer, attenuverters, LFO's, routing, and different modes of operation, the ConVertor E1 offers presets to keep the show going smoothly.


  • Audio / CV controlled oscillator with MIDI option
  • Most accurate, rapid pitch tracking to date
  • Pitch CV, ENV CV, Gate CV and synth audio outputs
  • Preamp with +50 dB auto-gain, Hi Z sw. (2M Ohm), HPF (25Hz, 80Hz, 160Hz), analog gain-compression
  • 1V/oct FM input with dedicated quantizer and attenuverter
  • Digital 4-pin connection to a MIDVertor E1 to enable MIDI in/out, sustain pedal, arpeggiation, and sync expansion option
  • True-sine, triangle, square, and sawtooth selectable waveforms
  • 2:1 / 3:1 / 4:1 analog gain-compression while in VCO mode
  • 1:2 / 2:1 / 3:1 / 4:1 / 6:1 / 8:1, 32bit, ENV CV compression/expansion & attenuverter for each destination
  • Polyphonic operation option with multiple units connected to one expansion MIDVertor E1 mainframe

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