Boss GM-800 Guitar Synthesizer
pedal
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Why this number?
The typical used price is the median of 10 used sales observed in the last 90 days, with outliers removed and the figure rounded. An observed sale is often the last asking price rather than a confirmed hammer price.
| Typical used price | €560 | median sold, rounded |
| Most sold between | €520–€630 | 25th to 75th percentile, same window |
| Window | last 90 days | the tightest of 90 days, 6 months and 24 months with 8 used sales |
| Sample | 10 used sales | ok sample |
| 90-day change | +8% | vs the 90 days before |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Live asks | €688 | typical ask across 92 listings, 23% above typical used |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €520 | 127 used sales, 2023–2026; not used for deals |
| Sales on record | 187 | all-time, all platforms |
| New | €633 | Thomann, read 28 August 2026 |
Typical prices are rounded (to 5 / 10 / 50 / 100 by size, in whichever currency you read); asks and the chart are exact. As of 20 October 2026. Full method, including what each badge means
For sale right now
The best-priced as cards, a row of them; every other ad as a line, by ask. Each ask is the seller’s own number; the platform’s mark opens the listing. Each one says when we last confirmed it at its source: the price and availability are from that visit, so check the marketplace before you go.
Reverb
eBay United States
54 more live · €501–€755 · typical ask €688 · most of these are new asks against a used typical
- €501€59 under (11%)new ·
Japan · eBay United States · confirmed 28 h ago - €501€59 under (11%)new · Japan · eBay United States · confirmed 28 h ago
- €502€58 under (10%)new · Japan · eBay United States · confirmed 28 h ago
- €515€45 under (8%)new · Japan · eBay Germany · confirmed 28 h ago
- €525€35 under (6%)new · Japan · eBay Germany · confirmed 28 h ago
- €526€34 under (6%)new · Japan · eBay Germany · confirmed 28 h ago
- €532€28 under (5%)new · Japan · eBay Germany · confirmed 28 h ago
- €539about typical (4% under)new · Japan · eBay United States · confirmed 28 h ago
- €540about typical (4% under)new · Japan · eBay Germany · confirmed 28 h ago
- €541about typical (3% under)new · Japan · eBay United States · confirmed 28 h ago
44 more · €542–€755 · United States, Japan, Canada, Germany and 2 more
- €542about typical (3% under)new · Japan · eBay United States · confirmed 28 h ago
- €543about typical (3% under)new · Japan · eBay United States · confirmed 28 h ago
- €545about typical (3% under)good ·
United Kingdom · Reverb · confirmed 22 h ago - €555about typical (1% under)new · Japan · eBay Germany · confirmed 28 h ago
- €577about typical (3% over)mint ·
United States · Reverb · confirmed 22 h ago - €579about typical (3% over)new · Japan · eBay United States · confirmed 28 h ago
- €580about typical (4% over)new · Japan · eBay United States · confirmed 28 h ago
- €5905% over typicalnew · Japan · eBay United States · confirmed 28 h ago
- €5916% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €5966% over typicalmint · United States · Reverb · confirmed 22 h ago
- €5977% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €6048% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €6058% over typicalmint · United States · Reverb · confirmed 22 h ago
- €6068% over typicalnew · United States · eBay United States · confirmed 28 h ago
- €6068% over typicalmint · United States · Reverb · confirmed 22 h ago
- €6099% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €62812% over typicalnew · Japan · eBay United States · confirmed 28 h ago
- €62912% over typicalnew · Japan · eBay United States · confirmed 2 days ago
- €64114% over typicalexcellent · United States · Reverb · confirmed 22 h ago
- €64114% over typicalnew · Japan · eBay United States · confirmed 28 h ago
- €65317% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €65717% over typicalnew ·
Canada · Reverb · confirmed 22 h ago - €65717% over typicalnew · Canada · Reverb · confirmed 22 h ago
- €66118% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €67521% over typicalgood · United States · eBay United States · confirmed 28 h ago
- €67521% over typicalmint · United States · Reverb · confirmed 22 h ago
- €67921% over typicalgood · United States · eBay United States · confirmed 28 h ago
- €67921% over typicalexcellent · United States · Reverb · confirmed 22 h ago
- €68021% over typicalnew · Japan · eBay Germany · confirmed 28 h ago
- €68623% over typicalnew · United States · Reverb · confirmed 22 h ago
- €68923% over typicalnew ·
France · Reverb · confirmed 22 h ago - €68923% over typicalnew · Japan · eBay United States · confirmed 28 h ago
- €69424% over typicalnew ·
Germany · eBay Germany · confirmed 28 h ago - €70225% over typicalgood · United States · eBay United States · confirmed 28 h ago
- €70225% over typicalexcellent · United States · Reverb · confirmed 22 h ago
- €70426% over typicalnew · Germany · eBay Germany · confirmed 28 h ago
- €71227% over typicalvery good · United States · Reverb · confirmed 22 h ago
- €72529% over typicalnew · Japan · eBay United States · confirmed 28 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
- €75535% over typicalnew · United States · Reverb · confirmed 22 h ago
Price history
Every recorded sale, one point each: 187 of them, placed by the day the ad went up. The line follows the middle of the sales around each point, with the middle half behind it, and breaks wherever nothing sold nearby. Condition is mixed, so some of the spread is a mint against a fair rather than the market moving.
Recent sales by listing date
10 used sales · last 90 days · middle half €520–€630 · ok
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 30 Sept 2026 | €520$582 as sold | excellent | United Kingdom | Reverb | Details |
| 30 Aug 2026 | €646$723 as sold | excellent | United States | Reverb | Details |
| 6 Aug 2026 | €651$758 as sold | mint | United States | Reverb | Details |
| 6 Aug 2026 | €557$648 as sold | mint | United States | Reverb | Details |
| 4 Aug 2026 | €517 | good | United Kingdom | eBay Germany | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Show the last 50 of 187 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 8 Aug 2026 | €555$646 as sold | excellent | United States | Reverb | Details |
| 4 Aug 2026 | €517 | good | United Kingdom | eBay Germany | Details |
| 2 Aug 2026 | €496$577 as sold | excellent |  Italy | Reverb | Details |
| 30 Jul 2026 | €686$799 as sold | very good | United States | Reverb | Details |
| 24 Jul 2026 | €584$680 as sold | excellent | United States | Reverb | Details |
| 15 Jul 2026 | €514$599 as sold | excellent | United States | Reverb | Details |
| 7 Jul 2026 | €773$900 as sold | excellent | United States | Reverb | Details |
| 3 Jul 2026 | €472$550 as sold | very good | United States | Reverb | Details |
| 20 Jun 2026 | €412$480 as sold | excellent | United States | Reverb | Details |
| 18 Jun 2026 | €537$625 as sold | excellent | United States | Reverb | Details |
| 27 May 2026 | €515$600 as sold | excellent | United States | Reverb | Details |
| 27 May 2026 | €451$525 as sold | excellent | United States | Reverb | Details |
| 15 May 2026 | €481$560 as sold | very good | United States | Reverb | Details |
| 15 May 2026 | €525$611 as sold | excellent | United States | Reverb | Details |
| 11 May 2026 | €514$599 as sold | very good | United States | Reverb | Details |
| 2 May 2026 | €514$599 as sold | excellent | United States | Reverb | Details |
| 2 May 2026 | €598$696 as sold | very good | United States | Reverb | Details |
| 29 Apr 2026 | €535$599 as sold | very good | United States | Reverb | Details |
| 28 Apr 2026 | €544$633 as sold | excellent | United States | Reverb | Details |
| 24 Apr 2026 | €464$540 as sold | very good | Japan | Reverb | Details |
| 7 Apr 2026 | €490$570 as sold | excellent | Japan | Reverb | Details |
| 3 Apr 2026 | €597$695 as sold | excellent | United States | Reverb | Details |
| 31 Mar 2026 | €549$639 as sold | excellent | United States | Reverb | Details |
| 24 Mar 2026 | €588$685 as sold | excellent | United States | Reverb | Details |
| 14 Mar 2026 | €786$915 as sold | excellent | United States | Reverb | Details |
| 10 Mar 2026 | €511$595 as sold | excellent | United Kingdom | Reverb | Details |
| 28 Feb 2026 | €567$660 as sold | excellent | United States | Reverb | Details |
| 10 Feb 2026 | €562$655 as sold | very good | France | Reverb | Details |
| 9 Feb 2026 | €685$797 as sold | very good | United States | Reverb | Details |
| 1 Feb 2026 | €515$600 as sold | excellent | United States | Reverb | Details |
| 25 Jan 2026 | €532$599 as sold | excellent | United States | Reverb | Details |
| 21 Jan 2026 | €540$629 as sold | excellent | United States | Reverb | Details |
| 19 Jan 2026 | €429$500 as sold | excellent | United States | Reverb | Details |
| 18 Jan 2026 | €515$600 as sold | excellent | United States | Reverb | Details |
| 18 Jan 2026 | €779$907 as sold | good | United Kingdom | Reverb | Details |
| 15 Jan 2026 | €516$600 as sold | mint | United States | Reverb | Details |
| 28 Dec 2025 | €489$569 as sold | very good | United States | Reverb | Details |
| 27 Dec 2025 | €436$508 as sold | excellent | United States | Reverb | Details |
| 20 Dec 2025 | €679$790 as sold | very good | United States | Reverb | Details |
| 18 Dec 2025 | €482$560 as sold | excellent | United States | Reverb | Details |
| 17 Dec 2025 | €581$675 as sold | excellent | United States | Reverb | Details |
| 16 Dec 2025 | €472$550 as sold | very good | United States | Reverb | Details |
| 10 Dec 2025 | €472$550 as sold | excellent | United States | Reverb | Details |
| 28 Nov 2025 | €472$550 as sold | excellent | United States | Reverb | Details |
| 18 Nov 2025 | €487$567 as sold | mint | United Kingdom | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Where it’s cheapest right now
What sellers are asking today, by country. Asking prices, not sales; shipping, fees and any customs or import VAT between you and the seller are not included.
| Country | Live | Median ask | Cheapest ask | Cheapest vs typical |
|---|---|---|---|---|
| United Kingdom | 3 | €489 | €471 | €89 under (16%) |
| Japan | 33 | €555 | €482 | €78 under (14%) |
| United States | 47 | €755 | €577 | 3% over typical |
| Canada | 2 | €657 | €657 | 17% over typical |
| France | 1 | €689 | €689 | 23% over typical |
| Germany | 4 | €854 | €694 | 24% over typical |
| Italy | 1 | €837 | €837 | 49% over typical |
 Philippines | 1 | €935 | €935 | 67% over typical |
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
The Boss GM-800 Guitar Synthesizer sells for €560 today (10 recorded sales, last 90 days; most between €520 and €630), up 9% on the €514 of the 90 days before. New, it costs €633 at Thomann (read 28 August 2026), so a used one at the median saves about 12%. There are 92 listings live right now across Reverb, eBay United States, eBay Germany, from €471 asking, a median ask 23% over the sale median. Figures computed 20 October 2026 by Doirado from cross-platform listing data.