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Opera 6 - Image 1

Opera 6

KeyboardAnalogPolyphonic

Back in the early '80s, this Italian gem quietly delivered one of those ultra-fat sync sounds you might recognize from the Synthex's laserharp preset, thanks to its dual DCOs with oscillator sync that just bites perfectly.

At its core, it's a 6-voice polyphonic beast with 12 oscillators total—two per voice, pumping out saw, pulse, and noise waveforms with PWM and sync for thick, evolving tones. Each voice rocks an SSM2044 4-pole low-pass filter with self-resonance, paired with SSM2024 VCAs and dual SSM2056 ADSR envelopes—one for amp, one likely shaping filter or osc duties—plus three LFOs (saw and pulse waves, including a slow and a fast one) for wild modulation possibilities. The 61-key velocity-sensitive keyboard spans C to C, feeding into 95 onboard patch memories, MIDI control, and a single stereo audio out, all housed in a straightforward, approachable panel that's easy to tweak without overwhelming you.

Players have long praised its warm, underrated analog voice—those SSM chips give it a creamy Curtis-like character that's super versatile for pads, leads, and basses—though some note the envelopes aren't the snappiest for super-aggressive plucks. It's a sleeper hit in the vintage poly world, perfect if you want authentic '80s depth without the hype.

Released

1983

Status

Discontinued

Synthesizer
Format
Keyboard
Type
Subtractive
Internal Battery
No
Voice
A/D
Analog
Polyphony
Polyphonic
Oscillators
2
Oscillator Type
DCO (Digitally Controlled)
Voices
6
Filter
Lowpass, 24dB/oct (4-pole)
Envelopes
2
LFO
3
Effects
No
Expression
Aftertouch
No
Velocity
Yes
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
1 stereo
Headphone
-
MIDI
In
MIDI Type
DIN (5-pin)
Ports
-
Wi-Fi
No
Workflow
Arpeggiator
No
Sequencer
No
Mod Matrix
-
Memory
95 patches
Measurements
Dimensions
-
Weight
-
Last updated Mar 21, 2026