Uploaded May 2026 | Updated September 2026, 2 weeks ago
Recreating a Korg Poly‑61 / Polysix on the Korg Opsix (FM + Analog‑Style Sound Design)
In this Opsix tutorial, I walk through how to recreate the character of a classic Korg Poly‑61 / Polysix–style analog synth using the Korg Opsix. Starting from an initialized patch, we build a dual‑oscillator analog‑style sound using FM operators as oscillators, route everything through the master filter, and then push things further with envelopes, LFOs, PWM, and effects.
This is a practical, front‑panel walkthrough focused on thinking like an analog synth while taking advantage of what Opsix can do beyond the original hardware.
⏱️ Timestamps
00:00 – Intro: Why recreate a Poly‑61 / Polysix on Opsix
00:36 – Initializing the patch & choosing an algorithm
01:24 – Using Opsix operators as oscillators
01:57 – Selecting saw waves (HD vs standard)
02:40 – Detuning oscillators for analog character
03:07 – Comparing Poly‑61 / Polysix architecture vs Opsix
04:18 – Using V‑Patches for mod‑wheel detuning
05:38 – Shaping envelopes for analog‑style response
06:14 – Choosing the Polysix / Poly‑61 filter model
06:37 – Filter envelope shaping
08:00 – Adding slow LFO movement to the filter
09:29 – Switching to square wave & PWM
10:06 – LFO‑driven pulse‑width modulation
11:32 – Adding chorus, delay & reverb
12:23 – Expanding beyond the original synth
12:45 – Adding a sub‑oscillator with its own envelope
14:32 – Final thoughts & next steps
🎛️ What You’ll Learn
How to use Opsix operators as analog‑style oscillators
Creating dual‑oscillator detune with V‑Patches
Using the Polysix / Poly‑61 filter model
PWM using LFOs and V‑Patch routing
Adding movement with envelopes and modulation
Going beyond the original hardware with extra operators
If you found this useful:
Like the video to support the channel
Subscribe for more Opsix deep dives, FM deconstructions, and synth recreations
Comment with suggestions for future videos or synths you’d like recreated
More Opsix tutorials and sound design breakdowns coming soon.
Recreating a Korg Poly‑61 / Polysix on the Korg Opsix (FM + Analog‑Style Sound Design)
In this Opsix tutorial, I walk through how to recreate the character of a classic Korg Poly‑61 / Polysix–style analog synth using the Korg Opsix. Starting from an initialized patch, we build a dual‑oscillator analog‑style sound using FM operators as oscillators, route everything through the master filter, and then push things further with envelopes, LFOs, PWM, and effects.
This is a practical, front‑panel walkthrough focused on thinking like an analog synth while taking advantage of what Opsix can do beyond the original hardware.
⏱️ Timestamps
00:00 – Intro: Why recreate a Poly‑61 / Polysix on Opsix
00:36 – Initializing the patch & choosing an algorithm
01:24 – Using Opsix operators as oscillators
01:57 – Selecting saw waves (HD vs standard)
02:40 – Detuning oscillators for analog character
03:07 – Comparing Poly‑61 / Polysix architecture vs Opsix
04:18 – Using V‑Patches for mod‑wheel detuning
05:38 – Shaping envelopes for analog‑style response
06:14 – Choosing the Polysix / Poly‑61 filter model
06:37 – Filter envelope shaping
08:00 – Adding slow LFO movement to the filter
09:29 – Switching to square wave & PWM
10:06 – LFO‑driven pulse‑width modulation
11:32 – Adding chorus, delay & reverb
12:23 – Expanding beyond the original synth
12:45 – Adding a sub‑oscillator with its own envelope
14:32 – Final thoughts & next steps
🎛️ What You’ll Learn
How to use Opsix operators as analog‑style oscillators
Creating dual‑oscillator detune with V‑Patches
Using the Polysix / Poly‑61 filter model
PWM using LFOs and V‑Patch routing
Adding movement with envelopes and modulation
Going beyond the original hardware with extra operators
If you found this useful:
Like the video to support the channel
Subscribe for more Opsix deep dives, FM deconstructions, and synth recreations
Comment with suggestions for future videos or synths you’d like recreated
More Opsix tutorials and sound design breakdowns coming soon.
