Spaceman Effects Mercury III Harmonic Boost
pedal
Has sold for €950 over 2015–2026, across 44 used sales. Too few in the last two years for a typical price today.
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Not enough sold data for a typical price.
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.
Nothing live right now on the platforms we track.
Price history
Every recorded sale, one point each: 44 of them, placed by the day the ad went up. Too few sales to draw a trend through them without inventing one, so the points speak for themselves. Condition is mixed, so some of the spread is a mint against a fair rather than the market moving.
Recent sales by listing date
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 14 Mar 2026 | €852$991 as sold | excellent |  United Kingdom | Reverb | Details |
| 9 Oct 2025 | €558$650 as sold | excellent |  United States | Reverb | Details |
| 17 Apr 2025 | €686$799 as sold | very good | United States | Reverb | Details |
| 13 Jun 2024 | €644$750 as sold | very good | United States | Reverb | Details |
| 7 Jul 2021 | €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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026. A price is what the listing last asked, converted at that day’s rate.
Show all 44 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 9 Aug 2025 | €686$799 as sold | excellent | United States | Reverb | Details |
| 4 Nov 2024 | €832$969 as sold | excellent | United States | Reverb | Details |
| 28 May 2024 | €945$1,100 as sold | excellent | United States | Reverb | Details |
| 29 Mar 2024 | €773$900 as sold | very good | United States | Reverb | Details |
| 22 Oct 2023 | €644$750 as sold | excellent | United States | Reverb | Details |
| 25 May 2023 | €515$600 as sold | very good | United States | Reverb | Details |
| 26 Jun 2022 | €756$880 as sold | excellent |  Thailand | Reverb | Details |
| 16 Feb 2022 | €773$900 as sold | very good | United States | Reverb | Details |
| 26 Oct 2021 | €945$1,100 as sold | excellent | United States | Reverb | Details |
| 13 Jul 2021 | €1,073$1,249 as sold | very good | United States | Reverb | Details |
| 12 Jul 2021 | €769$895 as sold | excellent | United States | Reverb | Details |
| 5 Jun 2021 | €739$860 as sold | mint | United States | Reverb | Details |
| 13 May 2021 | €703$819 as sold | excellent |  Japan | Reverb | Details |
| 18 Apr 2021 | €1,278$1,488 as sold | mint | United Kingdom | Reverb | Details |
| 11 Oct 2020 | €1,382$1,609 as sold | mint |  Ukraine | Reverb | Details |
| 29 Apr 2020 | €944$1,099 as sold | very good | United States | Reverb | Details |
| 21 Apr 2020 | €1,287$1,499 as sold | mint | United States | Reverb | Details |
| 12 Aug 2019 | €1,030$1,199 as sold | very good | United States | Reverb | Details |
| 9 Jul 2019 | €1,031$1,200 as sold | excellent | United States | Reverb | Details |
| 16 Jun 2019 | €1,159$1,349 as sold | mint | United States | Reverb | Details |
| 9 Apr 2019 | €515$600 as sold | mint | United States | Reverb | Details |
| 7 Mar 2019 | €2,147$2,500 as sold | mint | United States | Reverb | Details |
| 31 Dec 2018 | €1,460$1,700 as sold | excellent | United States | Reverb | Details |
| 21 Jul 2018 | €1,287$1,499 as sold | excellent | United States | Reverb | Details |
| 4 Jul 2018 | €1,030$1,199 as sold | excellent | United States | Reverb | Details |
| 4 May 2018 | €1,288$1,500 as sold | mint | United States | Reverb | Details |
| 2 Mar 2018 | €1,245$1,450 as sold | excellent | United States | Reverb | Details |
| 7 Nov 2017 | €1,374$1,600 as sold | excellent | United States | Reverb | Details |
| 28 Sept 2017 | €1,632$1,900 as sold | mint | United States | Reverb | Details |
| 20 May 2017 | €988$1,150 as sold | mint | Japan | Reverb | Details |
| 1 Feb 2017 | €945$1,100 as sold | excellent | United States | Reverb | Details |
| 25 Dec 2016 | €945$1,100 as sold | excellent | United States | Reverb | Details |
| 17 Nov 2016 | €1,031$1,200 as sold | excellent | United States | Reverb | Details |
| 26 Aug 2016 | €730$850 as sold | very good | United States | Reverb | Details |
| 4 Aug 2016 | €1,288$1,500 as sold | excellent | United States | Reverb | Details |
| 25 Apr 2016 | €1,460$1,700 as sold | excellent |  Canada | Reverb | Details |
| 4 Feb 2016 | €1,717$1,999 as sold | excellent | United States | Reverb | Details |
| 2 Feb 2016 | €1,374$1,600 as sold | excellent | United States | Reverb | Details |
| 3 Dec 2015 | €429$500 as sold | excellent | 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. A price is what the listing last asked, converted at that day’s rate.
44 recorded sales of the Spaceman Effects Mercury III Harmonic Boost from 2015–2026, all-time around €950. Too few in the last two years to quote a typical used price. Figures computed 19 October 2026.