Korg Mono/Poly MP-4 — Synth Resale Value
Keyboards and SynthsWhat a used Korg Mono/Poly MP-4 sells for on Reverb (median of 2 recent listings).
Korg Mono/Poly MP-4 value — Used $2,695. Prices updated August 2026.
Live on eBay right now
Expired listings — price reference
KORG Mono/Poly MP-4 Analog Synthesizer Tested Working Japan
Korg Mono/Poly MP4 Vintage Analog Synthesizer 4VCO Polysynth Key InstrumenteBay 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
- Mono/Poly MP-4
- Year
- 1981
- Finishes seen
- Blue
- Used range
- $1,995 – $2,695
- Sample size
- 2 listings
Korg Mono/Poly MP-4 resale value
The used Korg Mono/Poly MP-4 has a median Reverb asking price of $2,695, ranging from $1,995 to $2,695 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 | $2,695 | eBay sold comps |
| Live asking — low / typical / high | $1,530 / $2,186 / $4,000 | 12 live eBay listings ↗ |
Market check: As of August 5, 2026, 12 live eBay listings ask $1,530.00–$3,999.99 (median $2,185.63). Asking prices sit about 19% below the typical sold value of $2,695.00 — a window worth checking for buyers.
Frequently asked questions
- What is the general resale value range for a Korg Mono/Poly MP-4?
- Based on recent listings, the used range for the Korg Mono/Poly MP-4 is between $1,995 and $2,695.
- What year was this Korg keyboard manufactured?
- The Korg Mono/Poly MP-4 was manufactured in 1981.
- What color finishes of this synth are currently available?
- The blue finish has been seen among the listings for this model.
