# Yamaha DX21 Programmable Algorithm Synthesizer — resale value

**Yamaha DX21 Programmable Algorithm Synthesizer** is worth about **$274.58**, based on real closed eBay sales.

## Value

| Condition | Value (USD) |
| --- | --- |
| Used | $274.58 |

Values are medians of real closed eBay sales, updated 2026-08-04. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DYamaha%2520DX21%2520Synthesizer%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DYamaha%2520DX21%2520Synthesizer%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| Brand | Yamaha |
| Model | DX21 Programmable Algorithm Synthesizer |
| Year | 1985 |
| Finishes seen | Black |
| Used range | $204.18 – $274.58 |
| Sample size | 2 listings |
| Category | Keyboards and Synths |

## Yamaha DX21 Programmable Algorithm Synthesizer resale value

The used Yamaha DX21 Programmable Algorithm Synthesizer has a median Reverb asking price of **$274.58**, ranging from $204.18 to $274.58 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.

## FAQ

**What is the approximate resale value range for the Yamaha DX21?**

Based on current listings, the Yamaha DX21 is seen in the used range of $221.62 to $447.34.

**What color finishes are available for this synthesizer?**

The black finish has been observed in the available listings for the DX21.

**When was the Yamaha DX21 originally released?**

This programmable algorithm synthesizer was originally released in 1985.

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Full price guide: https://junkpal.ai/products/yamaha-dx21-programmable-algorithm-synthesizer-keyboards-and-synths-reverb
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-08-04, based on real sold listings (junkpal.ai)"