0% up to 48 Months on over 110 Brands!

New & Current Vintage King Card Holders

$ 629 .00
No interest if paid in full within 12 months Learn more
Special Order
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.



Synthesis Technology E352 Cloud Terrarium Module

26HP Eurorack module combining the latest 200 MHz 32-bit ARM DSP with SynthTech's Cloud and Morphing algorithms found in the legendary E340 Cloud Generator and the E350 Morphing Terrarium

Product Description

The Synthesis Technology E352 Cloud Terrarium Module combines the latest 200 MHz 32-bit ARM DSP with SynthTech's Cloud and Morphing algorithms found in the legendary E340 Cloud Generator and the E350 Morphing Terrarium.

VCO Architecture

The E352 has a single VCO, but 2 seperate audio outputs. The outputs are determined by the VCO Mode setting. They do not necessarily have to be the same pitch (Detung Mode).

The VCO is based upon a unique implementation of wavetable synthesis using 256 fixed-sample-length tables of 16-bit values. Each bank in memory consists of 64 wavetables, in an 8x8 array (like a chessboard). Synthesis Technology's proprietary DSP algorithms then allow either smooth or 'glitched' morphing between the wavetables in various ways. The E352 comes with 3 factory banks (192 total waves) and internal FLASH memory to hold 26 user-defined banks. This allows over 1,650 individual wavetables to be accessible. The free, cross-platform WaveEdit program is used to generate and import WAV files to user Banks.

Each VCO has 3 CV inputs (called Parameters or PARMs) which the VCO mode assigns to functions within that algorithm. In addition, there is a hard SYNC input, and the FM can be set to exponential or 3 ranges of TZFM (Thru-Zero FM).

Color LCD/Navigation

Everything is just 1 or 2 clicks away. No endless screens and pages to remember. The encoder is a mil-spec Grayhill optical encoder with a 25yr typical life. And if it ever needs replacing, it's on an easy to access cable assembly.

The color LCD lets you customize the color scheme with 64 different colors to pick from.

There are several included 'visual aids' that can be displayed on the LCD:

  • Each of the VCO output waves/noise modes, updated 20FPS
  • Lissajous figures
  • Real-time FFT spectra of the audio output when in the 2-op FM mode
  • Graphical maps of the X and Y PARM CVs
  • Interesting 'Eye Candy' effects

User Wavetables and Patch Storage

You can load your own sets of wavetables using the uSD card interface. The uSD card is NOT REQUIRED to run the E352. It is also used for firmware updates. The free application WaveEdit is used to format the wave data and bank data into the proper format used inside the E352.

The E352 has internal non-volatile memory for storing both User wavetables/Banks and for Patches. A 'Patch' stores the menu settings. There are 8 Patches available, and a Patch can be quickly recalled for live performances.

VCO Modes

Although the E352 excels at smooth morphing between wavetables (first introduced in the E350 Morphing Terrarium in 2010), traditional VCO waves such as saws, pure sines, and filtered noise (using a 4-pole resonant lowpass ladder filter) can be selected. Thru-zero, linear FM (in 3 ranges) can be used on not just triangle waves (as in an analog VCO) but with ANY waveshape or any wavetable. Here are all the different modes.

  • Morphing - Use 3 CVs to select where in the 8x8 bank of wavetables the output is generated. This is the E350's mode
  • Morph + Phase Shifting - used when mixing with another VCO (or driving laser galvos), audio-rate modulation generates classic PM tones, wavetable morphing plus a voltage-controlled phase shifter
  • Morph + Wavefolder - can you wavefold a wavetable? Sure you can...now
  • Cloud Generator - this is an improved E340 mode. Not just saws or sines, but can 'cloud' any wavetable. A 'cloud' is a set of detuned copies (the 'supersaw' effect)
  • Morphing Cloud Generator - combination of Cloud + Morph modes
  • 2op FM - 2 operator Yamaha FM. Not limited to just sine waves, you can use wavetables as well
  • Noise - 6 types of noise plus a resonant, Moog-style ladder filter
  • Sample Player - a 'lo-fi' sample player that treats the selected Bank as 1 giant WAV sample, with separate Start and Length points under voltage control


  • User-defined wavetables loaded via microSD card
  • Color 240 x 320 TFT LCD display
  • Grayhill mil-spec optical encoder for data entry
  • 16-bit wavetables (versus 8-bit for the E350) for 5x lower noise & THD
  • Contains all 192 of the original E350 wavetables
  • LFO mode, variable Glitch Energy and other added features

Product Specifications

Condition New
Chassis Module
Module Type Eurorack
Module Slot Count 26hp
Connector Type 3.5 mm
Power Consumption 65 mA +12 V; 24 -12 V

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Synthesis Technology E352 Cloud Terrarium Module . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.