SetonixSynth

Notes: The SetonixSynth Marsupial is a new dual filter design based around the re-issued AS3350 filter IC, originally used in rare synths such as the Synton Syrinx, Crumar Spirit and Rhodes Chroma but never widely utilized. Normalization between the control inputs and a Series/Parallel switch makes it simple to dial in a huge variety of unique and musical filter sounds.

Current draw: 36mA @ +12V; 35mA @ -12V

Eurorack width/depth: 8hp; 25mm

Notes: SetonixSynth Sands Of Time 1U Filtered Noise Source Module

The SetonixSynth Sands of Time is a compact 1U noise source which contains two separate noise circuits: a transistor-based analog noise generator similar to those used in many classic modular synth systems of the '60s and '70s, and a CMOS logic-based fixed oscillator bank as found in some of the great drum machines of the '80s, particularly of the TR series.

Either or both of these noise sources may be routed to a sweepable active bandpass filter, perfect for shaping the noise into many different "flavors," from low-frequency rumble, to chest-thumping midrange snare source, to hissing raw hi-hat noise and everything in between.

In a very small package, the Sands of Time provides a full palette of audio frequencies and Noise-like sounds which are useful in many popular patching techniques, especially analog drum patches and "Noise Walls" along with the generation of pseudo-random voltages for use with Sample & Holds, slew generators, and more.

Though it demands just 10hp of 1U rack space, the Sands of Time is still a useful and diverse noise source with some "oomph," a crucial yet often overlooked addition to any setup or patch.

Width: 10 hp (Intellijel 1U format)
Depth: 35 mm
Peak Current Draw: 25 mA @ +12V, 25mA @ -12V

Notes: The SetonixSynth SkyWave is an all-analogue voltage controlled oscillator capable of producing many different timbres and unique harmonic behaviours, thanks to an original step-based control scheme which allows the user to dial in completely different wave-shapes and levels for successive oscillator cycles.

This complex VCO uses an internal feedback loop with the clock output of the oscillator triggering a step sequencer which in turn cycles through settings at the frequency of the core oscillator, thus changing the shape and level of the waveform output on a per-cycle basis while also staying in tune and tracking pitch like a typical VCO.

Notes: The SetonixSynth/Tidbit Audio Psychedelic Voltage Processor, or PVP, is a four-channel chaos module. It uses colour-changing LEDs to produce fluctuating voltages in response to the Channel input, with each channel normalized in series to create increasingly chaotic "taps" that can be used one after another for different variations.

Any positive voltage input such as unipolar LFOs, envelopes, stepped voltages, or simply the onboard normalized voltage patched to a channel input is reproduced approximately on each channel output, with the PVP inducing unpredictable fluctuations due to the variable current consumed by an LED circuit with a mind of its own.

Dimensions
8 HP
25 mm deep

Current Draw
135 mA +12V
10 mA -12V
0 mA 5V

Notes: The Solar Gravity from SetonixSynth and Tidbit Audio is an analogue vactrol-based VCA designed to bring the lovely response of optocouplers into the realm of clean, performance-based Eurorack VCAs. Starting with this simple concept, the Solar Gravity utilizes some neat active circuitry to significantly reduce the bleed inherent in vactrol-based VCAs and to provide the user with lots of control over the level, direction, and response of incoming control voltage.

Though it's primarily designed for use with audio signals, the Solar Gravity can also be used to control the level of CV such as envelopes or stepped voltages with a unique vactrol response through its DC-coupled input.

Technical Specifications

Width: 4hp
Depth: 28mm
Peak Current Draw: 16mA @ +12V, 18mA @ -12V
Input Impedance (All Inputs): 100kO
Output Impedance: 1kO
AC Input Cutoff Frequency (-3dB High Pass): 5 Hz approx.