Black and silver electronic keyboard on a wooden stand.

Yamaha DX21 Programmable Algorithm Synthesizer — Synth Resale Value

Keyboards and Synths

What a used Yamaha DX21 Programmable Algorithm Synthesizer sells for on Reverb (median of 3 recent listings).

Yamaha DX21 Programmable Algorithm Synthesizer value — Used ¥2,330 · $345. Prices updated 2026年8月.

Used
¥2,330 · $345
New / Sealed
Live on eBay now

Converted from USD at the ECB reference rate — sold comps are US-market sales.

See current eBay listings
Selling on eBay right now · by condition
New
$63
2 listings asking
Used
$315
18 listings asking
Median of current eBay asking prices — live, not sold data.

Live on eBay right now

Item details

Brand
Yamaha
Make
Yamaha
Model
DX21 Programmable Algorithm Synthesizer
Year
1985
Finishes seen
Black
Used range
$295 – $447.37
Sample size
3 listings

Yamaha DX21 Programmable Algorithm Synthesizer resale value

The used Yamaha DX21 Programmable Algorithm Synthesizer has a median Reverb asking price of $345, ranging from $295 to $447.37 across 3 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

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ConditionValueBased on
Used¥2,330 · $345eBay sold comps
Live asking — low / typical / high¥195.83 / ¥2,127 / ¥3,275$29 / $314.98 / $485.0120 live eBay listings

Market check: As of August 9, 2026, 20 live eBay listings ask $29.00–$485.01 (median $314.98). Asking prices sit about 9% below the typical sold value of $345.00 — a window worth checking for buyers.

常见问题

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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