The Vostok may at first glance look like an EMS clone, but it is not. It may share the matrix panel and suitcase style design concept, but that’s where the similarities end. The Vostok has far more features packing a powerful amount of modular synthesiser power into one small suitcase. It also has a totally different sound and uses different circuitry. The Vostok is not a Synthi and not intended to be or sound like one. It is an independent synthesiser in it's own right!

Extended information

Utilises the ‘EMS VCS3/AKS’ style patch panel, but with an with increased 22x22 connection size. The matrix panel gives the patching versatility of a modular without the need for confusing & front-panel interfering patch cables. It’s the neatest & most versatile method of creating patches.

Technical specifications

MIDI to CV Converter

CV1 (pitch) / CV2 (controller) / Gate / Accent / Legato, MIDI Thru, channel select, manual trigger

Joystick

2 way joystick controller

Sequencer

8 step CV & Gate analogue sequencer, range switch, manual step

Audio Modules

VCO1

Saw / Squarea waves, Pulse Width, Glide, Sync

VCO2

Saw / Square waves, Pulse Width, Glide, Sync

VCO3

Digital wavetable oscillator. 256 waveforms. Digital readout display. (Works in lower octaves only)

Noise

White noise source

Voltage Controlled Multimode Filter

2 Filters based on Korg MS20 circuitry.

Independent Cut Off and Resonance for Low Pass Filters and High Pass Filters.

The VCLPF and VCHPF combine to produce a 3rd filter type, Band Pass

Voltage Controlled Amplifier

VCA wired in series with the VCF output. With 1/4" jack audio output.

Ring Modulator

AC ring mod

CV Modules

EG 1

ADSR envelope generator, Norla/Inverse output, Repeat function

EG 2

ADSR envelope generator, Normal/Inverse output, Repeat function

VCLFO1

Ramp, Reverse Ramp, Square,Triangle waves, Voltage controlled frequency

VCLFO2

Ramp, Reverse Ramp, Square,Triangle waves, Voltage controlled frequency

Sample and Hold

S+H with Slew

Utility Modules

Mixer

CV / Audio Mixer. 6 input with Normal and Inverse output

Signal Meter

The meter input is taken from the Mixer output.

Multiples 1 and 2

2 multiples, each is 4 way

Adaptor 1

6.35mm / 3.5mm jack socket converters

Adaptor 2

6.35mm / 3.5mm jack socket converter wired into the matrix board

Matrix Patch Panel

Utilising ‘EMS VCS3’ style patch panel with 22x22 connections. The patching versatility of a modular without the need for confusing & front-panel interfering patch cables.

Lead Patching

Jack socket patch points provided for additional internal & external patching & interfacing.

LEDs

13 of them! 4x7 segment wavetable display