Boss SP-303 Dr. Sample
keyboard
Worth around€335↓ 12% vs last quarter
Most sell between €316 and €367. 1 for sale right now from €300.
€316price it to sell fast
€335fair price
€367if you can wait
Why these numbers?
| Typical price | €335 | median of 11 sales, last 90 days |
| Middle half of sales | €316–€367 | 25th–75th percentile, same window |
| Sales on record | 762 | all-time, all platforms, in EUR |
| 90-day change | −12% | vs the 90 days before |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
Outliers beyond 10× the product’s own median (bundles, parts, typos) are excluded before anything is computed. As of 2 September 2026. Full method
Price history
What it sold for, month by month. The shaded band is where the middle half of sales landed.
The Boss SP-303 Dr. Sample sold for a median of €335 over the last 90 days across 11 recorded sales on European marketplaces, with most examples landing between €316 and €367. There is 1 listing live right now across OLX Portugal, from €300 asking. Figures computed 2 September 2026 by Doirado from cross-platform listing data, in EUR.
For sale right now
Best-priced first. Links go to the source listing.
OLX Portugal