Yamaha CS-40M Duophonic Synthesizer — Synth Resale Value
Keyboards and SynthsWhat a used Yamaha CS-40M Duophonic Synthesizer sells for on Reverb (median of 2 recent listings).
Yamaha CS-40M Duophonic Synthesizer value — Used $5,715. Prices updated September 2026.
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Price data verified against · 1
Item details
- Brand
- Yamaha
- Make
- Yamaha
- Model
- CS-40M Duophonic Synthesizer
- Finishes seen
- Black
- Used range
- $5,713.51 – $5,714.7
- Sample size
- 2 listings
Yamaha CS-40M Duophonic Synthesizer resale value
The used Yamaha CS-40M Duophonic Synthesizer has a median Reverb asking price of $5,714.7, ranging from $5,713.51 to $5,714.7 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 | $5,715 | eBay sold comps |
| Live asking — low / typical / high | $345 / $1,050 / $20,000 | 6 live eBay listings ↗ |
Market check: As of July 16, 2026, 6 live eBay listings ask $345.00–$19,999.99 (median $1,050.00). Asking prices sit about 82% below the typical sold value of $5,714.70 — a window worth checking for buyers.
Frequently asked questions
- What is the typical price range for the Yamaha CS-40M?
- Based on current listings, the Yamaha CS-40M ranges between $2,800 and $5,799.33.
- What color finishes are currently available for this model?
- The Black finish has been seen in the available listings for the CS-40M.
- How many listings are currently available for the CS-40M?
- There are currently 2 listings available for the Yamaha CS-40M Duophonic Synthesizer.
