Dangerous Music MONITOR-SR Surround Expansion Unit
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Why this number?
The typical used price is the median of 8 used sales observed in the last 24 months, 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 | €490 | median sold, rounded |
| Most sold between | €400–€520 | 25th to 75th percentile, same window |
| Window | last 24 months | the tightest of 90 days, 6 months and 24 months with 8 used sales |
| Sample | 8 used sales | thin data, treat as a rough guide |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €780 | 57 used sales, 2017–2026; not used for deals |
| Sales on record | 68 | all-time, all platforms |
Typical prices are rounded (to 5 / 10 / 50 / 100 by size, in whichever currency you read); asks and the chart are exact. As of 19 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.
eBay United States
Price history
Every recorded sale, one point each: 68 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
8 used sales · last 24 months · middle half €400–€520 · thin
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 2 Sept 2026 | €312$350 as sold | very good |  United States | Reverb | Details |
| 14 Jul 2026 | €644$750 as sold | excellent | United States | Reverb | Details |
| 10 Jan 2026 | €472$550 as sold | excellent | United States | Reverb | Details |
| 18 Jul 2025 | €515$600 as sold | very good | United States | Reverb | Details |
| 19 Jul 2024 | €690$800 as sold | mint | United States | 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026.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.
Show the last 50 of 68 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 29 Aug 2026 | €312$350 as sold | very good | United States | Reverb | Details |
| 29 Apr 2025 | €537$625 as sold | excellent | United States | Reverb | Details |
| 11 Mar 2025 | €511$595 as sold | very good | United States | Reverb | Details |
| 15 Feb 2025 | €429$500 as sold | very good | United States | Reverb | Details |
| 16 Apr 2024 | €1,661$1,934 as sold | excellent | United States | Reverb | Details |
| 29 Mar 2024 | €557$649 as sold | excellent | United States | Reverb | Details |
| 12 Feb 2024 | €1,896$2,198 as sold | new | United States | Reverb | Details |
| 6 Jan 2024 | €644$750 as sold | excellent | United States | Reverb | Details |
| 22 Aug 2023 | €937$1,091 as sold | mint |  Canada | Reverb | Details |
| 20 Aug 2023 | €601$700 as sold | excellent | United States | Reverb | Details |
| 15 Jun 2023 | €1,137$1,324 as sold | excellent |   France | Reverb | Details |
| 4 May 2023 | €1,720$1,999 as sold | new | United States | Reverb | Details |
| 11 Apr 2023 | €786$915 as sold | excellent | United States | Reverb | Details |
| 10 Apr 2023 | €943$1,098 as sold | excellent | United States | Reverb | Details |
| 28 Mar 2023 | €943$1,098 as sold | mint | United States | Reverb | Details |
| 10 Mar 2023 | €539$627 as sold | excellent | United States | Reverb | Details |
| 3 Jan 2023 | €729$848 as sold | excellent |  Estonia | Reverb | Details |
| 21 Dec 2022 | €1,216$1,416 as sold | excellent |  United Kingdom | Reverb | Details |
| 9 Dec 2022 | €859$1,000 as sold | very good | United States | Reverb | Details |
| 9 Dec 2022 | €859$1,000 as sold | very good | United States | Reverb | Details |
| 8 Oct 2022 | €1,724$1,999 as sold | new | United States | Reverb | Details |
| 5 Oct 2022 | €930$1,079 as sold | very good |  Australia | Reverb | Details |
| 28 Jul 2022 | €1,288$1,500 as sold | excellent | United States | Reverb | Details |
| 13 Jun 2022 | €835$972 as sold | excellent |  Slovenia | Reverb | Details |
| 31 May 2022 | €859$1,000 as sold | mint | United States | Reverb | Details |
| 26 Apr 2022 | €609$709 as sold | mint | United Kingdom | Reverb | Details |
| 14 Apr 2022 | €593$687 as sold | very good |  Germany | Reverb | Details |
| 1 Apr 2022 | €1,043$1,215 as sold | new | Germany | Reverb | Details |
| 6 Mar 2022 | €1,112$1,295 as sold | mint | United States | Reverb | Details |
| 18 Jan 2022 | €878$985 as sold | excellent | United States | Reverb | Details |
| 12 Jan 2022 | €859$1,000 as sold | mint | United States | Reverb | Details |
| 28 Oct 2021 | €945$1,100 as sold | excellent | United States | Reverb | Details |
| 12 Oct 2021 | €687$800 as sold | excellent | United States | Reverb | Details |
| 29 Sept 2021 | €711$827 as sold | excellent | Canada | Reverb | Details |
| 31 Aug 2021 | €858$1,000 as sold | mint | United States | Reverb | Details |
| 16 Aug 2021 | €581$677 as sold | very good | Canada | Reverb | Details |
| 28 Jul 2021 | €687$800 as sold | good | United States | Reverb | Details |
| 25 Jun 2021 | €858$999 as sold | excellent | United States | Reverb | Details |
| 27 May 2021 | €815$949 as sold | mint | United States | Reverb | Details |
| 16 Mar 2021 | €2,425$2,823 as sold | new | France | Reverb | Details |
| 20 Jan 2021 | €773$900 as sold | excellent | United States | Reverb | Details |
| 13 Jan 2021 | €1,287$1,499 as sold | new | United States | Reverb | Details |
| 5 Dec 2020 | €859$1,000 as sold | excellent | United States | Reverb | Details |
| 2 Dec 2020 | €687$800 as sold | very good | United States | Reverb | Details |
| 1 Dec 2020 | €601$700 as sold | mint | United States | 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.
Cheapest live: United States €713 · before shipping
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
The Dangerous Music MONITOR-SR Surround Expansion Unit sold for a median of €490 over the last 24 months across 8 recorded sales, with most examples landing between €400 and €520. There are 2 listings live right now across eBay United States, from €713 asking. Figures computed 19 October 2026 by Doirado from cross-platform listing data.