Ampeg Jet J-20 20-Watt 1x12" Guitar Combo
amp
Has sold for €490 over 2014–2026, across 53 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. 1 for sale, from €712.
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.
ReverbPrice history
Every recorded sale, one point each: 54 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 |
|---|---|---|---|---|---|
| 30 Aug 2026 | €735$825 as sold | very good |  United States | Reverb | Details |
| 6 Jun 2026 | €580$675 as sold | good | United States | Reverb | Details |
| 5 Feb 2026 | €644$750 as sold | excellent | United States | Reverb | Details |
| 18 Jan 2026 | €572$666 as sold | excellent | United States | Reverb | Details |
| 1 Oct 2025 | €609$709 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026.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 54 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 26 Dec 2024 | €601$700 as sold | excellent | United States | Reverb | Details |
| 3 Sept 2024 | €644$750 as sold | excellent | United States | Reverb | Details |
| 28 Sept 2023 | €558$650 as sold | mint | United States | Reverb | Details |
| 15 Sept 2023 | €514$599 as sold | excellent | United States | Reverb | Details |
| 19 Apr 2023 | €991$1,154 as sold | very good |   Poland | Reverb | Details |
| 22 Jan 2023 | €472$550 as sold | excellent | United States | Reverb | Details |
| 17 Jan 2023 | €558$650 as sold | mint | United States | Reverb | Details |
| 9 Nov 2022 | €515$600 as sold | excellent | United States | Reverb | Details |
| 13 Oct 2022 | €689$799 as sold | excellent | United States | Reverb | Details |
| 19 May 2022 | €579$650 as sold | excellent | United States | Reverb | Details |
| 9 Mar 2022 | €460$535 as sold | very good | United States | Reverb | Details |
| 29 Jan 2022 | €558$650 as sold | very good | United States | Reverb | Details |
| 25 Jan 2022 | €560$650 as sold | very good | United States | Reverb | Details |
| 14 Dec 2021 | €472$550 as sold | excellent | United States | Reverb | Details |
| 2 Dec 2021 | €429$500 as sold | very good | United States | Reverb | Details |
| 22 Sept 2021 | €511$595 as sold | excellent | United States | Reverb | Details |
| 6 Sept 2021 | €558$650 as sold | very good | United States | Reverb | Details |
| 8 Jun 2021 | €494$575 as sold | excellent | United States | Reverb | Details |
| 17 Apr 2021 | €472$550 as sold | very good | United States | Reverb | Details |
| 25 Mar 2021 | €574$668 as sold | mint |  France | Reverb | Details |
| 11 Jul 2020 | €387$450 as sold | excellent | United States | Reverb | Details |
| 5 Mar 2020 | €429$499 as sold | very good | United States | Reverb | Details |
| 28 Jan 2020 | €644$750 as sold | mint | United States | Reverb | Details |
| 18 Nov 2019 | €514$599 as sold | excellent | United States | Reverb | Details |
| 8 Feb 2019 | €515$600 as sold | excellent | United States | Reverb | Details |
| 4 Nov 2018 | €387$450 as sold | excellent | United States | Reverb | Details |
| 19 Oct 2018 | €515$600 as sold | excellent | United States | Reverb | Details |
| 18 Sept 2018 | €357$400 as sold | excellent | United States | Reverb | Details |
| 16 May 2018 | €412$480 as sold | very good | United States | Reverb | Details |
| 4 Apr 2018 | €387$450 as sold | very good | United States | Reverb | Details |
| 8 Jan 2018 | €687$800 as sold | mint | United States | Reverb | Details |
| 28 Dec 2017 | €408$475 as sold | very good | United States | Reverb | Details |
| 10 Dec 2017 | €430$499 as sold | excellent | United States | Reverb | Details |
| 28 Apr 2017 | €365$425 as sold | very good | United States | Reverb | Details |
| 26 Apr 2017 | €429$500 as sold | very good | United States | Reverb | Details |
| 20 Apr 2017 | €535$600 as sold | very good | United States | Reverb | Details |
| 21 Mar 2017 | €387$450 as sold | very good | United States | Reverb | Details |
| 8 Mar 2017 | €548$638 as sold | very good |  Australia | Reverb | Details |
| 4 Mar 2017 | €344$400 as sold | very good | United States | Reverb | Details |
| 16 Feb 2017 | €472$550 as sold | mint | United States | Reverb | Details |
| 8 Nov 2016 | €429$499 as sold | excellent | United States | Reverb | Details |
| 3 Nov 2016 | €624$700 as sold | mint | United States | Reverb | Details |
| 4 Oct 2016 | €472$550 as sold | very good | United States | Reverb | Details |
| 8 Jul 2016 | €414$465 as sold | excellent | United States | Reverb | Details |
| 10 Jun 2016 | €471$529 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 €712 · before shipping
53 recorded sales of the Ampeg Jet J-20 20-Watt 1x12" Guitar Combo from 2014–2026, all-time around €490. Too few in the last two years to quote a typical used price. Cheapest live €712 before shipping. Figures computed 19 October 2026.