synthesis-technology-e355

Synthesis Technology E355 Morphing Dual LFO

Dual morphing LFO: 10,000 waveforms across three banks, sub-LFO to audio rate

14 HP Eurorack module

The E355 is a 14HP dual modulation source built around a 24MHz 32-bit ARM that morphs (smoothly blends) between 68 stored waveshapes to produce over 10,000 unique waveforms. LFO1 is the master; LFO2 takes a relationship from a three-position MODE switch — independent Rate, independent Morph (waveshape), or variable Phase relative to LFO1. A Bank switch picks between basic waves (sine/tri/saw/pulses/noise), the same waves at 1x-8x harmonic multiples (audio-rate operation), or 64 designed Bank C wavetables from the E350 Morphing Terrarium with arpeggios, pings, swoops, and lattice-FM patterns. Range stretches from 12-minutes-per-cycle drone-modulation up to 1020Hz (audio rate in Bank B HIGH).

Features

  • Two LFOs from one 32-bit ARM with 4096-step morphing between waveshapes
  • 10,000+ unique waveforms across 68 stored waves and three banks
  • Three relationship modes between LFO1 and LFO2: Rate, Morph (waveshape), Phase
  • Bank A: classic basic waveforms in harmonic-complexity order
  • Bank B: 1x/2x/3x...8x frequency multiples of Bank A — audio rate operation
  • Bank C: 64 Robert-Rich-designed waveshapes from the E350
  • Two range settings: LOW (12 min/cycle - 2Hz) and HIGH (8s/cycle - 124Hz, or 1020Hz on Bank B)
  • 1V/Oct tracking input — play LFO1 chromatically
  • Exponential FM input with attenuator (DC to 8kHz)
  • Morph CV with attenuator scans wavetables continuously
  • Sync input (>1.2V) resets outputs to -5V; jumper-selectable for both LFOs or LFO1 only
  • Hold input (>1.2V) freezes outputs at current DC level

Controls & Jacks (18)

  • LFO1 Rate
  • FM
  • LFO1 LED
  • LFO2 LED
  • Morph
  • Morph Mod
  • LFO2 Function
  • LFO2 Mode
  • Range
  • Bank
  • 1V/Oct
  • FM In
  • Morph CV
  • LFO2 CV
  • Sync
  • Hold
  • LFO1 Out
  • LFO2 Out

How-To Guides

  • Stereo quadrature LFO pair
  • Drone-rate morphing texture
  • Audio-rate FM source from Bank B
  • Clocked sample-and-hold modulation
  • Two completely independent LFOs

Explore the interactive E355 Morphing Dual LFO panel on BleepDex — tap any control to learn what it does.

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