Boss WP-20G Wave Processor
pedal
Has sold for €110 over 2014–2026, across 62 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. 2 for sale, from €199.
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 GermanyPrice 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
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 10 Aug 2026 | €155$180 as sold | very good |  United States | Reverb | Details |
| 5 Aug 2026 | €172$196 as sold | mint |   Italy | Reverb | Details |
| 11 Nov 2025 | €154$179 as sold | excellent | United States | Reverb | Details |
| 1 Jul 2025 | €121$140 as sold | excellent | United States | Reverb | Details |
| 23 Sept 2024 | €97$113 as sold | good |  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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026.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.
Show the last 50 of 68 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 28 Jan 2025 | €301$350 as sold | excellent | United States | Reverb | Details |
| 12 Jul 2024 | €171$199 as sold | mint | United States | Reverb | Details |
| 10 Jul 2024 | €94$110 as sold | very good | United States | Reverb | Details |
| 30 May 2024 | €209$243 as sold | mint |  Denmark | Reverb | Details |
| 16 Feb 2024 | €172$200 as sold | mint | United States | Reverb | Details |
| 24 Jan 2024 | €172$200 as sold | very good | United States | Reverb | Details |
| 9 Jan 2024 | €131$152 as sold | excellent | United States | Reverb | Details |
| 5 Dec 2023 | €73$85 as sold | excellent |  Switzerland | Reverb | Details |
| 1 Aug 2023 | €78$91 as sold | new |  Spain | Reverb | Details |
| 23 Apr 2023 | €167$194 as sold | excellent |  Netherlands | Reverb | Details |
| 4 Mar 2023 | €86$100 as sold | good | United States | Reverb | Details |
| 11 Dec 2022 | €79$92 as sold | good |  Japan | Reverb | Details |
| 5 Nov 2022 | €205$239 as sold | mint |  France | Reverb | Details |
| 15 Oct 2022 | €171$199 as sold | excellent | United States | Reverb | Details |
| 13 Jul 2022 | €146$170 as sold | excellent | United States | Reverb | Details |
| 17 May 2022 | €195$227 as sold | new |  Greece | Reverb | Details |
| 28 Dec 2021 | €257$299 as sold | mint | United States | Reverb | Details |
| 22 Dec 2021 | €104$121 as sold | new | Greece | Reverb | Details |
| 8 Dec 2021 | €112$130 as sold | excellent | United States | Reverb | Details |
| 24 Jul 2021 | €203$237 as sold | mint | Netherlands | Reverb | Details |
| 5 Jul 2021 | €86$100 as sold | excellent | United States | Reverb | Details |
| 25 Jun 2021 | €85$99 as sold | very good | Japan | Reverb | Details |
| 16 Mar 2021 | €205$239 as sold | mint | United States | Reverb | Details |
| 3 Mar 2021 | €86$97 as sold | new | France | Reverb | Details |
| 16 Feb 2021 | €88$102 as sold | mint |  Hong Kong SAR China | Reverb | Details |
| 10 Feb 2021 | €194$226 as sold | mint |  Canada | Reverb | Details |
| 20 Jan 2021 | €137$159 as sold | excellent | United States | Reverb | Details |
| 31 Dec 2020 | €86$100 as sold | excellent | United States | Reverb | Details |
| 27 Dec 2020 | €43$50 as sold | excellent | United States | Reverb | Details |
| 30 Nov 2020 | €156$181 as sold | very good | Spain | Reverb | Details |
| 10 Nov 2020 | €167$194 as sold | very good | Italy | Reverb | Details |
| 15 Sept 2020 | €111$129 as sold | very good | United States | Reverb | Details |
| 30 Jul 2020 | €86$100 as sold | very good | United States | Reverb | Details |
| 10 Jul 2020 | €107$125 as sold | excellent | United States | Reverb | Details |
| 18 Jun 2020 | €82$95 as sold | mint | United States | Reverb | Details |
| 26 May 2020 | €107$125 as sold | very good | United States | Reverb | Details |
| 26 Apr 2020 | €150$175 as sold | excellent | United States | Reverb | Details |
| 29 Jan 2020 | €129$150 as sold | excellent | Canada | Reverb | Details |
| 10 Jan 2020 | €137$160 as sold | excellent | United States | Reverb | Details |
| 8 Aug 2019 | €140$163 as sold | mint | United Kingdom | Reverb | Details |
| 28 Jan 2019 | €176$205 as sold | excellent | United States | Reverb | Details |
| 17 Dec 2018 | €104$121 as sold | excellent | Netherlands | Reverb | Details |
| 12 Nov 2018 | €183$213 as sold | mint | France | Reverb | Details |
| 30 Jun 2018 | €45$52 as sold | good | Japan | Reverb | Details |
| 30 May 2018 | €103$120 as sold | very good | 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: 
Germany €199 · before shipping
62 recorded sales of the Boss WP-20G Wave Processor from 2014–2026, all-time around €110. Too few in the last two years to quote a typical used price. Cheapest live €199 before shipping. Figures computed 16 October 2026.