synthesis-technology-e330

Synthesis Technology E330 Multimode VCO

Three VCO engines in one knob set: 2-op FM, morphing wavetable, cloud

14 HP Eurorack module

The E330 is a 14HP digital VCO from Synthesis Technology that packs three completely different synthesis engines into a single module: 2-operator FM (a stripped-down Yamaha-style FM voice), 32-wavetable morphing (Z-axis blends through E350 wavetables), and a 4-oscillator Cloud generator (a slim variant of the E340 with Spread plus filtered-noise chaos). A front-panel three-position toggle picks the engine, and the same MODULATION A/B knobs and CV jacks change function depending on the mode, giving each engine its own pair of voicing controls. Two outputs (OUT 1 and OUT 2) deliver different aspects of each mode, so you can patch the modulator/sub waveform back into the VCO or mix it for additional harmonics.

Features

  • Three switchable synthesis engines: 2-op FM, morphing wavetable, 4-oscillator cloud
  • Two simultaneous outputs (OUT 1 / OUT 2) with engine-specific function
  • 32-wavetable morphing bank borrowed from the E350 Morphing Terrarium
  • Yamaha-style 2-operator FM with quantised 0.125-step ratio table
  • 4-VCO Cloud mode with Spread (detune) and Chaos (filtered-noise FM)
  • Hard-sync input active in all three engine modes (>0.45V threshold)
  • 1V/Oct tracking with internal scaling trimmer
  • Exponential FM input with dedicated attenuator (DC to 8kHz)
  • Two CV inputs (MOD A / MOD B) summed with the MODULATION A/B knobs
  • 16Hz to 18kHz frequency range on OUT 1, 2Hz to ~21kHz on OUT 2
  • 16-bit / 41kHz internal DSP — high FM index can produce intentional aliasing
  • Reverse-supply diodes on the +/-12V Eurorack header

Controls & Jacks (13)

  • Coarse
  • Fine
  • FM
  • Modulation A
  • Modulation B
  • Mode
  • 1V/Oct
  • FM In
  • Sync
  • Mod A In
  • Mod B In
  • Out 1
  • Out 2

How-To Guides

  • FM percussion from a single envelope
  • Slowly evolving morph pad
  • Detuned super-saw cloud
  • Feedback FM lead
  • Use the E330 as a noise source

Explore the interactive E330 Multimode VCO panel on BleepDex — tap any control to learn what it does.

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