Korg Opsix 37-Key Altered FM Synthesizer — Synth Resale Value
Keyboards and SynthsWhat a used Korg Opsix 37-Key Altered FM Synthesizer sells for on Reverb (median of 2 recent listings).
Korg Opsix 37-Key Altered FM Synthesizer value — Used $351. Prices updated September 2026.
Live on eBay right now
Expired listings — price reference
KORG OPSIX Altered FM Synthesizer 37-Key Digital Synth Keyboard Sequencer Used
KORG opsix 37-Key Keyboard Synthesizer w/ Display Screen, Pitch & Mod Wheels
Korg Opsix Module Altered FM Synthesizer Rackmountable Desktop Module
Korg Opsix mk2 , 37-Key Altered FM Synthesizer /Keyboard 2024 New ARMENS 
AC/DC Adapter For Korg Opsix 37 Key Altered FM Synthesizer Power Supply ChargereBay removes ended listings after ~90 days — we keep the prices. Look up finds current listings for the same item.
Price data verified against · 1
Item details
- Brand
- Korg
- Make
- Korg
- Model
- Opsix 37-Key Altered FM Synthesizer
- Finishes seen
- Blue / Black
- Used range
- $325 – $351
- Sample size
- 2 listings
Korg Opsix 37-Key Altered FM Synthesizer resale value
The used Korg Opsix 37-Key Altered FM Synthesizer has a median Reverb asking price of $351, ranging from $325 to $351 across 2 current listings.
What drives the price
For a used synth, vintage analog vs digital, working keys/sliders, polyphony, and original PSU move the price most. Vintage and limited runs command a premium; player-grade and modified examples sell for less.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Used | $351 | eBay sold comps |
| Live asking — low / typical / high | $10.54 / $549.99 / $1,749 | 20 live eBay listings ↗ |
Market check: As of July 30, 2026, 20 live eBay listings ask $10.54–$1,749.00 (median $549.99). Sellers are currently asking about 57% above the typical sold value of $351.00 — patient buyers can often do better than list price.
Frequently asked questions
- What colors is the Korg Opsix 37-Key available in?
- The Korg Opsix 37-Key Altered FM Synthesizer has been seen in Blue and Black finishes.
- What is the typical used price range for this synthesizer?
- You can find the Korg Opsix 37-Key in the used range of $325 – $520.61.
- How many listings are currently available for the Opsix 37-Key?
- There are currently 5 listings available for the Korg Opsix 37-Key Altered FM Synthesizer.
