Synthesis Technology E350 Morphing Terrarium

$297.70 Price Tier: Standard

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Page last updated Jun 30, 2026

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5.0 (4)

$297.70 3 available Used

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Average Price: $298

Standard/Professional

$149

$350+

Price Tier

In the Modular Synthesizers category, Synthesis Technology E350 Morphing Terrarium is priced in the upper end of the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Description

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The Synthesis Technology E350 Morphing Terrarium is a unique wavetable VCO with two independent waveform outputs. Unlike similar designs, the E350 is a fully self-contained, 1v/oct VCO. What sets the E350 apart from previous wavetable oscillators is voltage-controlled morphing. The module ships with three banks of 64 "basic" waveforms (192 total). Each bank of 64 waves is arranged in memory as an 8x8 array (like a chess board). The "rows" are the X direction and the columns are the Y direction. The two panel controls and the two external control voltages (Morph X and Morph Y) are used to "point" to where in the array we use for the signal that is available at the XY Out. The third control voltage is called Z Morph, which determines the waveshape at the Z Out. The Z control voltage scans the wavetable bank from wave #1 (think as row 1, column 1) to wave #64 (row 8, column 8). For example, if Morph X is set to 2, and Morph Y is set to 5, the signal at the XY Out is the waveform stored at row 2, column 5 (the 13th wavetable). The Z Out is completely independent of the XY Out, so if the Morph Z knob is at 48, then the 48th wavetable (row 6, column 8) is the output.

Product specs

Brand	Synthesis Technology
Model	e350
Finish	Silver
Year	2010s
Made In	United States
Categories	Eurorack Modules and Cases, Synth Modules
Horizontal Pitch	14HP
Modular Synth Format	Eurorack
Polyphony	1 Voice
Synth Module Function	LFO, Oscillator

FAQs

What is the primary function of the Synthesis Technology E350 Morphing Terrarium in a modular synth setup?: The E350 Morphing Terrarium functions as a digital wavetable oscillator, providing complex waveforms that can be smoothly morphed to create evolving sounds in a Eurorack modular system.
How many voices does the Synthesis Technology E350 support?: The E350 Morphing Terrarium is a monophonic module, meaning it supports one voice at a time, making it ideal for intricate sound design and modulation within a modular setup.
Can the Synthesis Technology E350 Morphing Terrarium be used as an LFO?: Yes, the E350 can function as a low-frequency oscillator (LFO), allowing for the modulation of other parameters in your modular system with its morphing waveforms.
What is the size of the Synthesis Technology E350 in a Eurorack case?: The E350 occupies 14HP in a Eurorack case, making it a moderately sized module for its versatile functionality.
Does the Synthesis Technology E350 require any specific power supply in a Eurorack system?: The E350 requires a standard Eurorack power supply connection, which typically provides both +12V and -12V to operate.

Videos

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MusicRadar Tech

Modular Monthly: Exploring wavetables with Synth Tech E350

MusicRadar Tech

Synthesis Technology E350 Morphing Terrarium - Modular Mantra

Pal+

Modular Wild Presents SOUNDS- Synthesis Technology Morphing Terrarium Modulation of Wavetables

Modular Wild

E350 Morphing Terrarium [Episode 98]

CatSynth TV

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Synthesis Technology E350 Morphing Terrarium.

Mods and upgrades

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The E560 Deflector Shield is highly recommended for ring modulation with the E350 to enhance sound complexity.
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A 2HP AI010 attenuator is suggested for permanent CV input patching, optimizing control.
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Incorporating an NLC Sloth with attenuators or VCAs can significantly expand the sonic possibilities of the E350.
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Use cases and applications

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Slow chaotic morphing of wavetables with an NLC Sloth module is favored for creating dynamic soundscapes, especially in Morph mode.
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The E350 is praised for live techno performances, especially when integrated with specific supporting modules for modulation and sound variation.
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The E352's second output, though not a true dual oscillator, provides unique sound textures, useful for rhythmic complements or toggling between voices.
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The E350's extensive waveform modulation capabilities are complemented well by a resonant filter bank, creating rich, evolving drone sounds.
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Features and functionality

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The E352 offers 3-axis modulation: 2 waves, one x, and one y, with variations, a quantizer, and single-cycle wav loading, enhancing its versatility.
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The E350 is noted for its high-fidelity sound, offering a range from smooth voices to intense screams, making it versatile for diverse sound design needs.
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Comparisons

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Unlike the E350, the E352 includes built-in attenuators for CV inputs, addressing previous modules' reliance on external attenuators.
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Compared to the Piston Honda MK3, the E350 is described as having superior sound quality, with the Piston Honda focusing on harsher tones and unique voice outputs.
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Value and pricing

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The E352 combines E350's morphing with E340's swarm functions and added firmware capabilities, justifying its higher cost for those seeking extensive modulation options.
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User experience

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Adjusting multiple slow LFOs with the E352 can create evolving textures over time, particularly effective with an analog filter to manage its brightness.
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Owners appreciate the E350's ability to function as both a VCO and an LFO, offering a broad range of sound design possibilities.
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Software and compatibility

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WaveEdit software, initially thought usable with the E350, is actually compatible only with the E352 and E370 for custom wavetable loading.
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