Undertone Audio Unfairchild Model 670M II 2-Channel Tube Compressor / Limiter
pro_audio
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Why this number?
The typical used price is the median of 14 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 | €7,250 | median sold, rounded |
| Most sold between | €6,550–€7,500 | 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 | 14 used sales | thin data, treat as a rough guide |
| By condition | €7,150 | excellent, median of 12 sales, same window |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Live asks | €10,244 | typical ask across 7 listings, 41% above typical used |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €7,650 | 30 used sales, 2019–2026; not used for deals |
| Sales on record | 34 | 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 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 States1 more live · €10,690–€10,690 · typical ask €10,244 · most of these are new asks against a used typical
Price history
Every recorded sale, one point each: 34 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
14 used sales · last 24 months · middle half €6,550–€7,500 · thin
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 5 Aug 2026 | €7,554$8,795 as sold | excellent |  United States | Reverb | Details |
| 6 Jun 2026 | €6,871$8,000 as sold | excellent | United States | Reverb | Details |
| 30 Aug 2025 | €8,588$9,999 as sold | mint | United States | Reverb | Details |
| 16 Dec 2024 | €8,589$10,000 as sold | new | United States | Reverb | Details |
| 25 Oct 2024 | €7,215$8,400 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 all 34 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 13 Jan 2026 | €7,301$8,500 as sold | excellent | United States | Reverb | Details |
| 22 Dec 2025 | €5,153$6,000 as sold | excellent | United States | Reverb | Details |
| 15 Dec 2025 | €7,042$8,199 as sold | excellent | United States | Reverb | Details |
| 23 Oct 2025 | €5,305$6,176 as sold | excellent |  Argentina | Reverb | Details |
| 21 Aug 2025 | €6,442$7,500 as sold | excellent | United States | Reverb | Details |
| 26 Jul 2025 | €9,018$10,500 as sold | excellent | United States | Reverb | Details |
| 30 Jun 2025 | €5,791$6,500 as sold | excellent | United States | Reverb | Details |
| 26 Apr 2025 | €7,300$8,499 as sold | excellent | United States | Reverb | Details |
| 4 Mar 2025 | €7,730$9,000 as sold | excellent | United States | Reverb | Details |
| 16 Dec 2024 | €7,301$8,500 as sold | excellent | United States | Reverb | Details |
| 27 Aug 2024 | €5,926$6,900 as sold | very good | United States | Reverb | Details |
| 2 Nov 2023 | €8,589$10,000 as sold | mint | United States | Reverb | Details |
| 25 Oct 2023 | €9,448$11,000 as sold | mint |  Liechtenstein | Reverb | Details |
| 4 Sept 2023 | €9,098$10,593 as sold | mint |   Denmark | Reverb | Details |
| 10 Jan 2023 | €8,909$10,000 as sold | mint | United States | Reverb | Details |
| 29 Oct 2022 | €9,485$10,995 as sold | new | United States | Reverb | Details |
| 4 Sept 2022 | €8,074$9,400 as sold | mint | United States | Reverb | Details |
| 26 Aug 2022 | €8,398$9,735 as sold | mint | United States | Reverb | Details |
| 7 Jul 2022 | €7,504$8,699 as sold | very good | United States | Reverb | Details |
| 8 Jun 2022 | €9,447$10,999 as sold | mint | United States | Reverb | Details |
| 5 Jan 2022 | €8,589$10,000 as sold | excellent | United States | Reverb | Details |
| 23 Dec 2021 | €8,159$9,500 as sold | excellent | United States | Reverb | Details |
| 20 Mar 2021 | €7,729$8,999 as sold | mint | United States | Reverb | Details |
| 30 Nov 2020 | €8,155$9,495 as sold | mint | United States | Reverb | Details |
| 28 Feb 2020 | €7,558$8,800 as sold | mint | United States | Reverb | Details |
| 2 Jan 2020 | €7,856$8,818 as sold | mint |  Poland | Reverb | Details |
| 14 Aug 2019 | €7,497$8,400 as sold | mint | United States | Reverb | Details |
| 12 Oct 2018 | €7,669$8,609 as sold | excellent | United States | Reverb | Details |
| 6 Dec 2017 | €7,673$8,895 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 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Cheapest live: United States €8,017 · 
France €8,304 · Denmark €10,448 · before shipping
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
The Undertone Audio Unfairchild Model 670M II 2-Channel Tube Compressor / Limiter sold for a median of €7,250 over the last 24 months across 14 recorded sales, with most examples landing between €6,550 and €7,500. There are 7 listings live right now across Reverb, eBay United States, from €8,017 asking. Figures computed 20 October 2026 by Doirado from cross-platform listing data.