Every number on Doirado is computed from listings we observe directly: Reverb and eBay, in Europe and the United States, and the local classifieds in the countries we cover (compared here), with the new prices at Thomann beside them and more sources being added. We record what was asked, what happened to the listing, and when. Nothing is copied from other price guides, and nothing is estimated by a model.
The typical used price
Every product has one typical used price, and it is the same number wherever the site prints it: the product page, the search results, the deals list and every listing card. It is the median of recorded sales, put on one scale at the exchange rate of the day each one sold and shown in the currency you read (see Currencies below). Before the median is taken, we band out prices more than ten times above or below the product's own long-run median: bundles, spares-or-repair listings, typos, and jokes are real listings but they are not the price of the thing.
We always prefer the tightest window that has enough data behind it: the last 90 days when the product trades often, falling back to six months, then two years. The page says which window it is, how many sales are behind it, and how much to trust it: solid sample is ninety days with fifty sales or more, OK sample ninety days with eight to forty-nine or six months with twenty, thin data anything that only the two-year window can carry. A median built on fewer than eight banded sales is not shown at all. A number without enough data behind it is worse than no number. The all-time median, over every year we have, is shown for context and never used to price anything today.
The number is rounded, because a median of 180 sales does not know the price to the last unit and a round number is the one you can remember: to the nearest 5 under 100, 10 under 1,000, 50 under 10,000, 100 above, in whichever currency you read, always under 3% of the price. The same rounding applies to the range, the condition bands and the asks below. Asking prices are never rounded; a seller wrote them.
Currencies
Sales happen in many currencies, so to put them on one scale every sale is converted at the ECB reference rate of the day it sold into a single base, the euro, and the median is taken there. You read it in the currency you choose, euros, US dollars or pounds, at the ECB rate of the day, rounded again on the same scale, and the page says which day's rate it used. It is one figure in three currencies, never a separate median of US or UK sales: that would be a second "typical", and there is only one. A listing's asking price is always shown in the currency the seller wrote it in, with the converted figure beside it; the gap on a card is worked out from the two numbers on the card.
Most sold between is the middle half of the same sales, the 25th to the 75th percentile. If you own one, the median is a fair ask and the two ends of that range are the low and high ends of recent sales; we only call the low end "ask this to move it" when we know how long the product takes to sell.
By condition
The same window is split by the condition sellers stated (mint, excellent, very good, good), and each band with eight or more sales gets a median of its own. A listing in excellent condition is compared to excellent sales where that band exists, and to the mixed typical price otherwise, and the card says which. A listing with no condition stated is always compared to the mixed price.
Sold is not asking
Most recorded "sold" prices on marketplaces are final asking prices, not settled amounts. Where offers are common, real transaction prices sit somewhat below what we can observe. We weight sources by how close their sold flag is to a true transaction, and winning auction bids, which we watch to the end ourselves, count for more than a seller's own "sold" mark. The site keeps sold prices and live asking prices as two separate series and never uses one word for both: "typical used price" is what things fetched, "lowest ask" and "typical ask" are what sellers want today.
Time to sell
"Sells in 14 days" is only ever computed from listings we watched from listing to sale: first seen while still for sale, confirmed gone later. We never infer speed from when our crawler happened to find something. This is a high bar, and it means some products honestly say "not enough watched sales yet" while the data accumulates. We would rather say that than invent a number.
Sell-through
The share of watched listings that ended in a sale rather than expiring unsold, over the last 180 days. It answers a different question than price: not "what is it worth" but "will it actually move".
Didn't sell here
The listings that ended without a sale, and what they asked. Counted only on the platforms where an unsold ending can be seen at all, eBay above all, and only for listings we watched from listing to end. Two kinds: an auction that closed with no bids, where the start price was the ceiling, and a fixed-price listing its seller withdrew. Most withdrawn listings are dealers pulling stock that sold somewhere else, so the row says "withdrawn" and never "nobody would pay this". It is the ceiling beside the price: where asks stall. The row also says where the asks came from, because most of them are Japanese dealers who list on European eBay at about double the going rate and withdraw when the item sells at home: "68 from Japan at €1,500, the other 9 at €1,200". The ceiling a buyer in Europe or the US actually meets is the other sellers' figure, so the gap to typical hangs on them whenever eight or more are there. The figure never enters the typical price or a deal badge, and it appears from eight endings in 180 days, the same bar as everything else.
Live listings and deal badges
A listing's badge compares its asking price to its baseline, the product's median for the listing's condition where eight sales carry it, the product's typical used price otherwise, and the card names the baseline and the sample so you can check the claim. The rules are printed on the deals page:
- Great deal: 15% or more under, condition stated.
- Good deal: 5% to 15% under, condition stated.
- Under typical: 5% or more under, but no condition stated, so there is no band to hold it to.
- About typical: within 5% of the baseline either way. No saving is printed: €19 on a €1,250 item is noise, and a share is the only rule that is fair to a €100 pedal and a €2,000 synth alike.
- Over typical: 5% to 15% over. High ask: 15% or more over.
- Check before you go: half the baseline or less. That is more often a part, a copy or a mistake than a bargain; we show it apart, without a badge.
- Used, more than new: where a shop still sells the same model for less than its used typical price (the Korg PA300: €555 new, €710 used), an ask at or above the new price is never a deal, whatever the used market says, and a card under the new price leads with the gap to new. The new price sits on the product strip. A successor model's price is "closest new" and never caps a badge.
The deals page is a buyer's shortlist, not a second price guide. An internal engine picks the candidates (it has its own, deliberately low bar, cuts parts, copies and lots, and runs a review pass) and the page keeps only those that are Great, Good or Under typical against the public ruler above, confirmed ones first, then this week's, then by share under, capped at 35% so an unverified 47% off does not outrank a confirmed 18% off. On a product page every live listing is on the page: the cheapest and the closest to typical as cards, every other ad as one line (ask, gap to typical, condition, country, platform) in ask order, with one line above them giving the count, the range and the typical live ask. Nothing is hidden; a page with more than twenty such lines opens ten and folds the rest behind a control that states the count, the range and the countries. An ask far above typical, or above the new price, stays visible with a note to check it is the same instrument. That is how a mismatched listing gets found and reported.
The badge is about the price. Every card carries the country the listing ships from, and the deals page can be narrowed to Europe or to one country, but a listing in Nashville earns the same badge as one in Berlin at the same price: this is not a European-only site. Prices on cards are before shipping, fees and any customs or import VAT between you and the seller, and Reverb and eBay add buyer fees on top; we never add a guessed shipping cost. We show the platform, price, condition, country and a link to the source, never the seller, and never someone else's photos or text.
What we are not
Doirado is not a marketplace and sells nothing. We link to listings where they live. Prices shown are market observations, not offers or appraisals, and the sample size next to each number is the honest limit of what we know.