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.
