Telefunken AC701K Vacuum Tube - for Neumann M49 M50 M269 KM53 KM54 KM56 Used
pro_audio
Not enough sold data for a typical price — 7 sales on record all-time.
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Not enough sold data for a typical price. 4 for sale, from €534.
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 United States
Recent sales by listing date
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 11 Oct 2026 | €600 | new |   Germany | eBay Germany auction | Details |
| 6 Mar 2026 | €156$176 as sold | parts |  Netherlands | Reverb | Details |
| 5 Dec 2024 | €2,464$2,766 as sold | new | Germany | Reverb | Details |
| 16 Aug 2019 | €2,931$3,290 as sold | excellent |  United States | Reverb | Details |
| 18 May 2019 | €432$485 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in October 2026. A price is what the listing last asked, converted at that day’s rate.
Show the last 6 of 7 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 7 Mar 2020 | €471$529 as sold | new |  Italy | 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in October 2026. A price is what the listing last asked, converted at that day’s rate.
Cheapest live: United States €534 · Germany €755 · 
Japan €2,742 · before shipping
7 recorded sales of the Telefunken AC701K Vacuum Tube - for Neumann M49 M50 M269 KM53 KM54 KM56 Used, too few to quote a typical used price. Cheapest live €534 before shipping. Figures computed 20 October 2026.