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Siel Opera 6 VCO

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Description

Version 2 of the Opera 6 from Siel featured 6 voices with 12 Voltage Controlled Oscillators and is very similar in look and style as the original with a new blue casing, pitch and mod wheels, and repositioned buttons allowing more space for the user to perform functions. The synthesizer's architecture is still a 6 voice unit with 12 voltage controlled featuring square and saw waveforms with pulse width modulation. The Opera 6 has MIDI note on/off with velocity and program change only. Backups could be performed over MIDI as well and also tape backup is available. A pitch wheel was added alongside the original's mod single wheel.

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Architecture

Type: Analog, Digital

Synthesis: Subtractive

Oscillators

Oscillators: 2

Waveforms: Pink Noise, Pulse, Pulse Variable, Saw Down, Saw Up, Square

Osc Modulation: Envelope, Keyboard, Knob, LFO, Mod Wheel, Oscillator, Pitch Wheel, Velocity

Envelopes

Envelopes: 1

Evelope Paramerters: Attack, Decay, Sustain, Release

Filters

Filters: 1

Types: Low Pass, Resonance

LFO

LFO: 3

LFO Parameters: Saw Up, Saw Down, Square

LFO Notes::
LFO 1-2 Initial level, speed, destination LFO 1: DCO A on/off
Destinations LFO 2: DCO B on/off

LFO 3 Waveform saw and square, initial depth and speed control.
Destinations: DCO A and B with both PWM on or off.
VCF on/off.

Polyphony & Tuning

Polyphony: 6

Timbrality: 1

Tuning: Standard

Patches

Patches RAM: 1

Case

Case: Keyboard

Keyboard: 61 keys

Controls: Buttons, Knobs, Mod - Wheel, Pitch -Wheel, Switches, Velocity

Display Type: Numeric

Dimensions (WxDxH): 94 x 39,5 x 18,5