Empirical Labs EL-Rx DocDerr 500 Series Channel Strip Module
pro_audio
Doirado is free: no paywall, no sign-up. If this saved you from overpaying, you can chip in. Support Doirado
Why this number?
The typical used price is the median of 16 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 | €540 | median sold, rounded |
| Most sold between | €520–€570 | 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 | 16 used sales | thin data, treat as a rough guide |
| By condition | €550 | excellent, median of 13 sales, same window |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Live asks | €792 | typical ask across 9 listings, 47% above typical used |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €550 | 95 used sales, 2016–2026; not used for deals |
| Sales on record | 100 | 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
3 more live · €792–€912 · typical ask €792 · most of these are new asks against a used typical
Price history
Every recorded sale, one point each: 100 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
16 used sales · last 24 months · middle half €520–€570 · thin
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 27 Aug 2026 | €445$500 as sold | excellent |  United States | Reverb | Details |
| 25 Aug 2026 | €547$614 as sold | excellent | United States | Reverb | Details |
| 24 Sept 2025 | €494$575 as sold | mint | United States | Reverb | Details |
| 31 May 2025 | €515$600 as sold | very good | United States | Reverb | Details |
| 12 Mar 2025 | €543$632 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 100 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 12 Aug 2026 | €558$650 as sold | excellent | United States | Reverb | Details |
| 8 Aug 2026 | €630$733 as sold | excellent |  Canada | Reverb | Details |
| 8 Aug 2026 | €630$733 as sold | excellent | Canada | Reverb | Details |
| 20 Jun 2026 | €593$690 as sold | excellent | United States | Reverb | Details |
| 4 Mar 2026 | €498$580 as sold | excellent |  Japan | Reverb | Details |
| 5 May 2025 | €537$625 as sold | excellent | United States | Reverb | Details |
| 12 Mar 2025 | €537$625 as sold | excellent | United States | Reverb | Details |
| 12 Mar 2025 | €537$625 as sold | excellent | United States | Reverb | Details |
| 4 Jan 2025 | €557$649 as sold | excellent | United States | Reverb | Details |
| 30 Dec 2024 | €680$788 as sold | excellent |   Italy | Reverb | Details |
| 22 Dec 2024 | €515$600 as sold | excellent | United States | Reverb | Details |
| 11 Sept 2024 | €524$610 as sold | excellent | United States | Reverb | Details |
| 7 Sept 2024 | €1,248$1,450 as sold | excellent | United States | Reverb | Details |
| 24 Jul 2024 | €642$747 as sold | excellent |  Australia | Reverb | Details |
| 30 Apr 2024 | €642$747 as sold | mint | Australia | Reverb | Details |
| 9 Apr 2024 | €550$640 as sold | excellent | United States | Reverb | Details |
| 27 Feb 2024 | €686$799 as sold | new | United States | Reverb | Details |
| 15 Jan 2024 | €644$750 as sold | mint | United States | Reverb | Details |
| 15 Jan 2024 | €644$750 as sold | mint | United States | Reverb | Details |
| 16 Dec 2023 | €633$737 as sold | very good |  United Kingdom | Reverb | Details |
| 13 Dec 2023 | €515$600 as sold | mint | United States | Reverb | Details |
| 13 Dec 2023 | €515$600 as sold | mint | United States | Reverb | Details |
| 13 Dec 2023 | €515$600 as sold | mint | United States | Reverb | Details |
| 13 Dec 2023 | €515$600 as sold | mint | United States | Reverb | Details |
| 11 Dec 2023 | €515$600 as sold | mint | United States | Reverb | Details |
| 22 Sept 2023 | €580$675 as sold | excellent | United States | Reverb | Details |
| 12 Aug 2023 | €1,288$1,500 as sold | excellent | Australia | Reverb | Details |
| 4 Jul 2023 | €580$675 as sold | excellent | United States | Reverb | Details |
| 4 Jul 2023 | €580$675 as sold | excellent | United States | Reverb | Details |
| 11 Mar 2023 | €834$971 as sold | mint |  Germany | Reverb | Details |
| 30 Jan 2023 | €601$700 as sold | mint | United States | Reverb | Details |
| 20 Sept 2022 | €601$700 as sold | mint | United States | Reverb | Details |
| 20 Aug 2022 | €537$625 as sold | excellent | United States | Reverb | Details |
| 1 Aug 2022 | €388$451 as sold | excellent | Canada | Reverb | Details |
| 19 Jul 2022 | €623$725 as sold | excellent | United States | Reverb | Details |
| 1 May 2022 | €601$700 as sold | excellent | United States | Reverb | Details |
| 23 Apr 2022 | €581$677 as sold | very good | Canada | Reverb | Details |
| 3 Apr 2022 | €1,156$1,346 as sold | excellent | United Kingdom | Reverb | Details |
| 17 Feb 2022 | €670$780 as sold | mint | United Kingdom | Reverb | Details |
| 30 Jan 2022 | €1,074$1,250 as sold | mint | United States | Reverb | Details |
| 17 Jan 2022 | €558$650 as sold | mint | United States | Reverb | Details |
| 9 Jan 2022 | €626$729 as sold | mint | Germany | Reverb | Details |
| 13 Dec 2021 | €537$625 as sold | mint | United States | Reverb | Details |
| 1 Dec 2021 | €640$745 as sold | mint | United States | Reverb | Details |
| 20 Nov 2021 | €614$715 as sold | excellent | Canada | 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 €692 · Italy €775 · 
Austria €887 · before shipping
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
Sellers are asking a median of €792 for the Empirical Labs EL-Rx DocDerr 500 Series Channel Strip Module today, 47% over the €540 it actually sells for (16 recorded sales, last 24 months; most sold between €520 and €570). There are 9 listings live right now across Reverb, from €692 asking. Figures computed 20 October 2026 by Doirado from cross-platform listing data.