Overview
The E350 Morphing Terrarium is a 14HP wavetable VCO from Synthesis Technology with two outputs. Its waves are held in three banks of 64, chosen with a three-position BANK switch. Each bank is arranged like a chessboard, 8 by 8, and waves along a row tend to be alike or move from dark to bright.
Two separate outputs read that grid in different ways. The XY OUT plays the point set by the Morph X and Morph Y controls and CVs. The Z OUT plays the point set by Morph Z, which scans all 64 waves of the bank in order, from the first row and column to the last. The DSP smooths between neighbors, which Synthesis Technology says gives over 24,000 distinct waves. There are no built-in CV attenuators, so CVs are usually attenuated before they reach the module, and any CV is added to its panel knob. A three-position RANGE switch covers 1 cycle in 13 minutes up to 10 kHz, so the E350 also works as a slow modulation source. Coarse covers about 8 octaves and Fine about half an octave, and 1 V/oct tracking is set with a factory trimmer beside the FINE pot. There’s an FM input from DC to 8 kHz with an exponential response, and a SYNC input that resets both outputs.
The E350 takes either MOTM-style ±15 V power or a 16-pin Eurorack connector at ±12 V. Synthesis Technology later replaced it with the E352 Cloud Terrarium.
Wavetables on the E350 Morphing Terrarium
The three banks are fixed. Bank A is mostly sine waves in different harmonic series, plus some Hammond drawbar settings. Bank B is a wide mix that includes male and female vocal formants. Bank C was made for LFO and modulation shapes, though it works at audio rate too. Synthesis Technology publishes a PDF chart of each bank on the E350 product page. Synthesis Technology’s documentation for the E350 doesn’t describe any way to load user waves: there’s no card slot, no editor and no transfer method listed. So WaveStack can’t put tables on it.
If you want the E350’s sound with your own waves, the E352 is the direct successor. It ships with all 192 E350 waves as three ROM banks, adds 26 user banks of the same 8 × 8 shape, and loads them from a microSD card as WaveEdit banks. WaveStack exports those with its E352 / E370 (WaveEdit) target, and the E370 reads the same files across four oscillators. See the E352 and E370 page for how that works.
The 8 × 8 layout carried over, which means a grid you build in WaveStack lines up with the X and Y morphing E350 owners already know, only on the newer modules.
Specifications
| Banks | 3 (A, B, C), fixed |
|---|---|
| Waves per bank | 64 (8 × 8) |
| Total waves | 192 |
| User wavetables | Not supported |
| Width | 14HP |
Frequently asked questions
Can I load my own wavetables into the E350?
No. The E350’s documentation from Synthesis Technology lists three fixed banks of 64 waves, selected with a switch, and no way to load new ones. There’s no card slot, screen or transfer method, and the BANK switch only chooses between the three built-in sets. Synthesis Technology’s E352 Cloud Terrarium replaced it, includes all 192 E350 waves, and adds 26 user banks loaded from microSD, which WaveStack can export to.
What’s the difference between the E350 and the E352?
The E352 is the E350’s replacement. It keeps the three E350 banks and the 8 × 8 morphing, then adds 26 user banks loaded with WaveEdit files, a color screen, Cloud modes with up to 8 detuned copies, 2-operator FM, wavefolding, noise, detuning and a sample player, plus eight patch memories. The E350 is 14HP with fixed banks. The E352 is 26HP and loads from a microSD card.
How do the E350’s XY and Z outputs differ?
They read the same bank differently. XY OUT plays the wave at the point set by Morph X and Morph Y, moving around the 8 × 8 grid in two directions. Z OUT ignores the grid and scans all 64 waves in a line, from the first to the last. Synthesis Technology suggests the Z control for auditioning every wave in a bank, and the two outputs can be patched separately.
Can I get the E350’s waves on another module?
The E352 Cloud Terrarium ships with all 192 E350 waves as its ROM A, ROM B and ROM C banks, so those sounds come with it. The E370 Quad Morphing VCO also ships with three banks of 64 wavetables. Both modules then accept your own WaveEdit banks on top of the factory ones, stored in 26 user banks alongside the ROM sets.